diff --git a/po/fr.po b/po/fr.po
index 83e9a40..1ecf3e3 100644
--- a/po/fr.po
+++ b/po/fr.po
@@ -408,12 +408,12 @@ msgstr "Vérification de l'espace disque disponible"
 #: src/transaction.vala:685
 #, c-format
 msgid "%s optionally requires %s"
-msgstr ""
+msgstr "%s peut nécessiter %s"
 
 #: src/transaction.vala:688
 #, c-format
 msgid "Database file for %s does not exist"
-msgstr ""
+msgstr "Le dépôt %s n'existe pas"
 
 #: src/transaction.vala:740
 #, c-format
diff --git a/resources/choose_dep_dialog.ui b/resources/choose_dep_dialog.ui
index 19d48a6..8cf3fc1 100644
--- a/resources/choose_dep_dialog.ui
+++ b/resources/choose_dep_dialog.ui
@@ -2,7 +2,6 @@
 <interface>
   <requires lib="gtk+" version="3.12"/>
   <template class="PamacChooseDependenciesDialog" parent="GtkDialog">
-    <property name="can_focus">False</property>
     <property name="border_width">6</property>
     <property name="title" translatable="yes">Choose Optional Dependencies</property>
     <property name="modal">True</property>
@@ -25,7 +24,6 @@
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="has_focus">True</property>
-                <property name="receives_default">True</property>
               </object>
               <packing>
                 <property name="expand">False</property>
diff --git a/resources/choose_provider_dialog.ui b/resources/choose_provider_dialog.ui
index bd79f8e..42ee77d 100644
--- a/resources/choose_provider_dialog.ui
+++ b/resources/choose_provider_dialog.ui
@@ -2,7 +2,6 @@
 <interface>
   <requires lib="gtk+" version="3.12"/>
   <template class="PamacChooseProviderDialog" parent="GtkDialog">
-    <property name="can_focus">False</property>
     <property name="border_width">6</property>
     <property name="title" translatable="yes">Choose a Provider</property>
     <property name="modal">True</property>
@@ -25,7 +24,6 @@
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="has_focus">True</property>
-                <property name="receives_default">True</property>
               </object>
               <packing>
                 <property name="expand">True</property>
diff --git a/resources/history_dialog.ui b/resources/history_dialog.ui
index 847906b..24ac8f2 100644
--- a/resources/history_dialog.ui
+++ b/resources/history_dialog.ui
@@ -2,7 +2,6 @@
 <interface>
   <requires lib="gtk+" version="3.12"/>
   <template class="PamacHistoryDialog" parent="GtkDialog">
-    <property name="can_focus">False</property>
     <property name="border_width">6</property>
     <property name="title" translatable="yes">Pamac History</property>
     <property name="default_width">600</property>
@@ -25,7 +24,6 @@
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="has_focus">True</property>
-                <property name="receives_default">True</property>
               </object>
               <packing>
                 <property name="expand">False</property>
diff --git a/resources/manager_window.ui b/resources/manager_window.ui
index 60ee274..6b08633 100644
--- a/resources/manager_window.ui
+++ b/resources/manager_window.ui
@@ -23,7 +23,7 @@
               <object class="GtkButton" id="refresh_button">
                 <property name="visible">True</property>
                 <property name="tooltip_text" translatable="yes">Refresh databases</property>
-                <property name="focus_on_click">False</property>
+                <property name="can_focus">True</property>
                 <signal name="clicked" handler="on_refresh_button_clicked" swapped="no"/>
                 <style>
                   <class name="image-button"/>
@@ -46,7 +46,7 @@
               <object class="GtkButton" id="valid_button">
                 <property name="visible">True</property>
                 <property name="tooltip_text" translatable="yes">Apply changes</property>
-                <property name="focus_on_click">False</property>
+                <property name="can_focus">True</property>
                 <signal name="clicked" handler="on_valid_button_clicked" swapped="no"/>
                 <style>
                   <class name="image-button"/>
@@ -69,7 +69,7 @@
               <object class="GtkButton" id="cancel_button">
                 <property name="visible">True</property>
                 <property name="tooltip_text" translatable="yes">Cancel all planned changes</property>
-                <property name="focus_on_click">False</property>
+                <property name="can_focus">True</property>
                 <signal name="clicked" handler="on_cancel_button_clicked" swapped="no"/>
                 <style>
                   <class name="image-button"/>
@@ -91,6 +91,7 @@
             <child>
               <object class="GtkMenuButton" id="menu_button">
                 <property name="visible">True</property>
+                <property name="can_focus">True</property>
                 <property name="popup">main_menu</property>
                 <property name="use_popover">True</property>
                 <style>
@@ -164,6 +165,7 @@
                         <child>
                           <object class="GtkSwitch" id="search_aur_button">
                             <property name="visible">True</property>
+                            <property name="tooltip_text" translatable="yes">Search in AUR</property>
                             <property name="halign">end</property>
                           </object>
                           <packing>
@@ -492,7 +494,7 @@
                         <child>
                           <object class="GtkViewport" id="viewport1">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
+                            <property name="can_focus">True</property>
                             <child>
                               <object class="GtkBox" id="box5">
                                 <property name="visible">True</property>
@@ -502,7 +504,7 @@
                                 <child>
                                   <object class="GtkLabel" id="name_label">
                                     <property name="visible">True</property>
-                                    <property name="can_focus">False</property>
+                                    <property name="can_focus">True</property>
                                     <property name="halign">start</property>
                                     <property name="margin">6</property>
                                     <property name="selectable">True</property>
@@ -516,7 +518,7 @@
                                 <child>
                                   <object class="GtkLabel" id="desc_label">
                                     <property name="visible">True</property>
-                                    <property name="can_focus">False</property>
+                                    <property name="can_focus">True</property>
                                     <property name="halign">start</property>
                                     <property name="margin">6</property>
                                     <property name="selectable">True</property>
@@ -544,7 +546,7 @@
                                 <child>
                                   <object class="GtkLabel" id="licenses_label">
                                     <property name="visible">True</property>
-                                    <property name="can_focus">False</property>
+                                    <property name="can_focus">True</property>
                                     <property name="halign">start</property>
                                     <property name="margin">6</property>
                                     <property name="selectable">True</property>
@@ -579,7 +581,7 @@
                         <child>
                           <object class="GtkTreeView" id="deps_treeview">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
+                            <property name="can_focus">True</property>
                             <property name="headers_visible">False</property>
                             <property name="headers_clickable">False</property>
                             <property name="enable_search">False</property>
@@ -640,7 +642,7 @@
                         <child>
                           <object class="GtkTreeView" id="details_treeview">
                             <property name="visible">True</property>
-                            <property name="can_focus">False</property>
+                            <property name="can_focus">True</property>
                             <property name="headers_visible">False</property>
                             <property name="headers_clickable">False</property>
                             <property name="enable_search">False</property>
diff --git a/resources/packages_chooser_dialog.ui b/resources/packages_chooser_dialog.ui
index 7b33f1e..6f17892 100644
--- a/resources/packages_chooser_dialog.ui
+++ b/resources/packages_chooser_dialog.ui
@@ -29,7 +29,6 @@
                 <property name="use_underline">True</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
-                <property name="receives_default">False</property>
               </object>
               <packing>
                 <property name="expand">False</property>
@@ -43,8 +42,6 @@
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="has_focus">True</property>
-                <property name="can_default">True</property>
-                <property name="receives_default">False</property>
               </object>
               <packing>
                 <property name="expand">False</property>
diff --git a/resources/progress_dialog.ui b/resources/progress_dialog.ui
index d5da9af..429f7d1 100644
--- a/resources/progress_dialog.ui
+++ b/resources/progress_dialog.ui
@@ -28,6 +28,7 @@
                 <property name="label" translatable="yes">_Cancel</property>
                 <property name="use_underline">True</property>
                 <property name="visible">True</property>
+                <property name="can_focus">True</property>
                 <signal name="clicked" handler="on_cancel_button_clicked" swapped="no"/>
               </object>
               <packing>
@@ -40,6 +41,7 @@
                 <property name="label" translatable="yes">_Close</property>
                 <property name="use_underline">True</property>
                 <property name="visible">True</property>
+                <property name="can_focus">True</property>
                 <signal name="clicked" handler="on_close_button_clicked" swapped="no"/>
               </object>
               <packing>
@@ -78,7 +80,7 @@
         <child>
           <object class="GtkExpander" id="expander">
             <property name="visible">True</property>
-            <property name="can_focus">False</property>
+            <property name="can_focus">True</property>
             <property name="resize_toplevel">True</property>
             <child>
               <placeholder/>
diff --git a/resources/transaction_info_dialog.ui b/resources/transaction_info_dialog.ui
index 0f7a55b..31287c8 100644
--- a/resources/transaction_info_dialog.ui
+++ b/resources/transaction_info_dialog.ui
@@ -21,7 +21,6 @@
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
                 <property name="has_focus">True</property>
-                <property name="receives_default">True</property>
                 <property name="use_underline">True</property>
               </object>
               <packing>
diff --git a/resources/transaction_sum_dialog.ui b/resources/transaction_sum_dialog.ui
index cfe6b85..a237e89 100644
--- a/resources/transaction_sum_dialog.ui
+++ b/resources/transaction_sum_dialog.ui
@@ -34,7 +34,6 @@
                 <property name="label" translatable="yes">_OK</property>
                 <property name="visible">True</property>
                 <property name="can_focus">True</property>
-                <property name="receives_default">False</property>
                 <property name="use_underline">True</property>
               </object>
               <packing>
diff --git a/resources/updater_window.ui b/resources/updater_window.ui
index 1d6189e..05db75b 100644
--- a/resources/updater_window.ui
+++ b/resources/updater_window.ui
@@ -38,7 +38,7 @@
             <child>
               <object class="GtkTreeView" id="updates_treeview">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
+                <property name="can_focus">False</property>
                 <property name="vexpand">True</property>
                 <property name="headers_visible">False</property>
                 <property name="headers_clickable">False</property>
@@ -101,7 +101,6 @@
                     <property name="label" translatable="yes">_Preferences</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
-                    <property name="receives_default">True</property>
                     <property name="use_underline">True</property>
                     <signal name="clicked" handler="on_preferences_button_clicked" swapped="no"/>
                   </object>
@@ -119,8 +118,7 @@
             <child>
               <object class="GtkButtonBox" id="buttonbox1">
                 <property name="visible">True</property>
-                <property name="can_focus">True</property>
-                <property name="has_focus">True</property>
+                <property name="can_focus">False</property>
                 <property name="spacing">6</property>
                 <property name="layout_style">end</property>
                 <child>
@@ -128,7 +126,6 @@
                     <property name="label" translatable="yes">_Refresh</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
-                    <property name="receives_default">True</property>
                     <property name="use_underline">True</property>
                     <signal name="clicked" handler="on_refresh_button_clicked" swapped="no"/>
                   </object>
@@ -142,7 +139,7 @@
                     <property name="label" translatable="yes">_Apply</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
-                    <property name="receives_default">True</property>
+                    <property name="has_focus">True</property>
                     <property name="use_underline">True</property>
                     <signal name="clicked" handler="on_apply_button_clicked" swapped="no"/>
                   </object>
@@ -156,7 +153,6 @@
                     <property name="label" translatable="yes">_Close</property>
                     <property name="visible">True</property>
                     <property name="can_focus">True</property>
-                    <property name="receives_default">True</property>
                     <property name="use_underline">True</property>
                     <signal name="clicked" handler="on_close_button_clicked" swapped="no"/>
                   </object>
diff --git a/src/common.vala b/src/common.vala
index be064ee..e86a86e 100644
--- a/src/common.vala
+++ b/src/common.vala
@@ -59,8 +59,6 @@ public int pkgcmp (Alpm.Package pkg1, Alpm.Package pkg2) {
 
 public unowned Alpm.List<Alpm.Package?> search_all_dbs (Alpm.Handle handle, Alpm.List<string?> needles) {
 	unowned Alpm.List<Alpm.Package?> syncpkgs = null;
-	unowned Alpm.List<Alpm.Package?> tmp = null;
-	unowned Alpm.List<Alpm.Package?> diff = null;
 	unowned Alpm.List<Alpm.Package?> result = null;
 
 	result = handle.localdb.search (needles);
@@ -69,15 +67,11 @@ public unowned Alpm.List<Alpm.Package?> search_all_dbs (Alpm.Handle handle, Alpm
 		if (syncpkgs.length == 0)
 			syncpkgs = db.search (needles);
 		else {
-			tmp = db.search (needles);
-			diff = tmp.diff (syncpkgs, (Alpm.List.CompareFunc) pkgcmp);
-			syncpkgs.join (diff);
+			syncpkgs.join (db.search (needles).diff (syncpkgs, (Alpm.List.CompareFunc) pkgcmp));
 		}
 	}
 
-	diff = syncpkgs.diff (result, (Alpm.List.CompareFunc) pkgcmp);
-
-	result.join (diff);
+	result.join (syncpkgs.diff (result, (Alpm.List.CompareFunc) pkgcmp));
 	//result.sort ((Alpm.List.CompareFunc) pkgcmp);
 
 	return result;
@@ -92,17 +86,7 @@ public unowned Alpm.List<Alpm.Package?> group_pkgs_all_dbs (Alpm.Handle handle,
 			result.add (pkg);
 	}
 
-	// FIX IT: provided methods don't work for syncdbs so it's done manually
-	foreach (unowned Alpm.DB db in handle.syncdbs) {
-		foreach (unowned Alpm.Package pkg in db.pkgcache) {
-			foreach (string name in pkg.groups) {
-				if (name == grp_name) {
-					if (Alpm.pkg_find (result, pkg.name) == null)
-						result.add (pkg);
-				}
-			}
-		}
-	}
+	result.join (Alpm.find_group_pkgs (handle.syncdbs, grp_name).diff (result, (Alpm.List.CompareFunc) pkgcmp));
 
 	//result.sort ((Alpm.List.CompareFunc) pkgcmp);
 
@@ -111,25 +95,19 @@ public unowned Alpm.List<Alpm.Package?> group_pkgs_all_dbs (Alpm.Handle handle,
 
 public unowned Alpm.List<Alpm.Package?> get_all_pkgs (Alpm.Handle handle) {
 	unowned Alpm.List<Alpm.Package?> syncpkgs = null;
-	unowned Alpm.List<Alpm.Package?> tmp = null;
-	unowned Alpm.List<Alpm.Package?> diff = null;
 	unowned Alpm.List<Alpm.Package?> result = null;
 
-	result = handle.localdb.pkgcache;
+	result = handle.localdb.pkgcache.copy ();
 
 	foreach (unowned Alpm.DB db in handle.syncdbs) {
 		if (syncpkgs.length == 0)
-			syncpkgs = db.pkgcache;
+			syncpkgs = db.pkgcache.copy ();
 		else {
-			tmp = db.pkgcache;
-			diff = tmp.diff (syncpkgs, (Alpm.List.CompareFunc) pkgcmp);
-			syncpkgs.join (diff);
+			syncpkgs.join (db.pkgcache.diff (syncpkgs, (Alpm.List.CompareFunc) pkgcmp));
 		}
 	}
 
-	diff = syncpkgs.diff (result, (Alpm.List.CompareFunc) pkgcmp);
-
-	result.join (diff);
+	result.join (syncpkgs.diff (result, (Alpm.List.CompareFunc) pkgcmp));
 	//result.sort ((Alpm.List.CompareFunc) pkgcmp);
 
 	return result;
diff --git a/src/daemon.vala b/src/daemon.vala
index c2b5af3..b0e1477 100644
--- a/src/daemon.vala
+++ b/src/daemon.vala
@@ -74,12 +74,12 @@ namespace Pamac {
 			previous_percent = 0;
 		}
 
-		public async void write_config (HashTable<string,string> new_conf, GLib.BusName sender) {
+		public void write_config (HashTable<string,string> new_conf, GLib.BusName sender) {
 			var pamac_config = new Pamac.Config ("/etc/pamac.conf");
 			try {
 				Polkit.Authority authority = Polkit.Authority.get_sync (null);
 				Polkit.Subject subject = Polkit.SystemBusName.new (sender);
-				Polkit.AuthorizationResult result = yield authority.check_authorization (
+				Polkit.AuthorizationResult result = authority.check_authorization_sync (
 					subject,
 					"org.manjaro.pamac.commit",
 					null,
@@ -94,11 +94,11 @@ namespace Pamac {
 			}
 		}
 
-		public async void set_pkgreason (string pkgname, uint reason, GLib.BusName sender) {
+		public void set_pkgreason (string pkgname, uint reason, GLib.BusName sender) {
 			try {
 				Polkit.Authority authority = Polkit.Authority.get_sync (null);
 				Polkit.Subject subject = Polkit.SystemBusName.new (sender);
-				Polkit.AuthorizationResult result = yield authority.check_authorization (
+				Polkit.AuthorizationResult result = authority.check_authorization_sync (
 					subject,
 					"org.manjaro.pamac.commit",
 					null,
@@ -483,6 +483,7 @@ namespace Pamac {
 		public void trans_cancel () {
 			handle.trans_interrupt ();
 			handle.trans_release ();
+			init_alpm_config ();
 		}
 
 		public void quit () {
diff --git a/src/installer.vala b/src/installer.vala
index 0f6d0cf..df27854 100644
--- a/src/installer.vala
+++ b/src/installer.vala
@@ -21,7 +21,6 @@ namespace Pamac {
 
 	public class Installer: Gtk.Application {
 		Transaction transaction;
-		Pamac.Config pamac_config;
 		bool pamac_run;
 
 		public Installer () {
@@ -46,8 +45,7 @@ namespace Pamac {
 				transaction_info_dialog.run ();
 				transaction_info_dialog.hide ();
 			} else {
-				pamac_config = new Pamac.Config ("/etc/pamac.conf");
-				transaction = new Pamac.Transaction (null, pamac_config);
+				transaction = new Pamac.Transaction (null);
 				transaction.finished.connect (on_emit_trans_finished);
 				this.hold ();
 			}
diff --git a/src/manager.vala b/src/manager.vala
index 0daffa7..15953bd 100644
--- a/src/manager.vala
+++ b/src/manager.vala
@@ -49,8 +49,12 @@ namespace Pamac {
 		}
 
 		public override void activate () {
-			if (pamac_run == false)
+			if (pamac_run == false) {
 				manager_window.present ();
+				while (Gtk.events_pending ())
+					Gtk.main_iteration ();
+				manager_window.show_all_pkgs ();
+			}
 		}
 
 		public override void shutdown () {
diff --git a/src/manager_window.vala b/src/manager_window.vala
index 27ff5e6..a8bdcd4 100644
--- a/src/manager_window.vala
+++ b/src/manager_window.vala
@@ -59,8 +59,6 @@ namespace Pamac {
 		[GtkChild]
 		public TreeView search_treeview;
 		[GtkChild]
-		public TreeSelection search_treeview_selection;
-		[GtkChild]
 		public TreeView groups_treeview;
 		[GtkChild]
 		public TreeView states_treeview;
@@ -93,27 +91,29 @@ namespace Pamac {
 		[GtkChild]
 		public Button cancel_button;
 
-		public Gtk.Menu right_click_menu;
-		public Gtk.MenuItem deselect_item;
-		public Gtk.MenuItem install_item;
-		public Gtk.MenuItem remove_item;
-		public Gtk.SeparatorMenuItem separator_item;
-		public Gtk.MenuItem reinstall_item;
-		public Gtk.MenuItem install_optional_deps_item;
-		public Gtk.MenuItem explicitly_installed_item;
-		public GLib.List<Pamac.Package> selected_pkgs;
+		// menu
+		Gtk.Menu right_click_menu;
+		Gtk.MenuItem deselect_item;
+		Gtk.MenuItem install_item;
+		Gtk.MenuItem remove_item;
+		Gtk.SeparatorMenuItem separator_item;
+		Gtk.MenuItem reinstall_item;
+		Gtk.MenuItem install_optional_deps_item;
+		Gtk.MenuItem explicitly_installed_item;
+		GLib.List<Pamac.Package> selected_pkgs;
 
-		public ListStore search_list;
-		public ListStore groups_list;
-		public ListStore states_list;
-		public ListStore repos_list;
-		public ListStore deps_list;
-		public ListStore details_list;
+		// liststore
+		ListStore search_list;
+		ListStore groups_list;
+		ListStore states_list;
+		ListStore repos_list;
+		ListStore deps_list;
+		ListStore details_list;
 
 		PackagesModel packages_list;
 		HashTable<string, Json.Array> aur_results;
 
-		public Pamac.Config pamac_config;
+		Pamac.Config pamac_config;
 		public Transaction transaction;
 
 		public SortInfo sortinfo;
@@ -177,7 +177,8 @@ namespace Pamac {
 
 			pamac_config = new Pamac.Config ("/etc/pamac.conf");
 
-			transaction = new Pamac.Transaction (this as ApplicationWindow, pamac_config);
+			transaction = new Pamac.Transaction (this as ApplicationWindow);
+			transaction.check_aur = pamac_config.enable_aur;
 			transaction.finished.connect (on_emit_trans_finished);
 
 			history_dialog = new HistoryDialog (this);
@@ -201,9 +202,18 @@ namespace Pamac {
 			cancel_button.set_sensitive (sensitive);
 		}
 
+		public void show_all_pkgs () {
+			this.get_window ().set_cursor (new Gdk.Cursor (Gdk.CursorType.WATCH));
+			populate_packages_list (get_all_pkgs (transaction.handle));
+			this.get_window ().set_cursor (null);
+		}
+
 		public void update_lists () {
 			string[] grps = {};
 			TreeIter iter;
+			TreeSelection selection;
+			selection = repos_treeview.get_selection ();
+			selection.changed.disconnect (on_repos_treeview_selection_changed);
 			foreach (unowned DB db in transaction.handle.syncdbs) {
 				repos_list.insert_with_values (out iter, -1, 0, db.name);
 				foreach (unowned Group grp in db.groupcache) {
@@ -213,14 +223,29 @@ namespace Pamac {
 				}
 			}
 			repos_list.insert_with_values (out iter, -1, 0, dgettext (null, "local"));
+			repos_list.get_iter_first (out iter);
+			selection.select_iter (iter);
+			selection.changed.connect_after (on_repos_treeview_selection_changed);
+
+			selection = groups_treeview.get_selection ();
+			selection.changed.disconnect (on_groups_treeview_selection_changed);
 			foreach (string name in grps)
 				groups_list.insert_with_values (out iter, -1, 0, name);
 			groups_list.set_sort_column_id (0, SortType.ASCENDING);
+			groups_list.get_iter_first (out iter);
+			selection.select_iter (iter);
+			selection.changed.connect_after (on_groups_treeview_selection_changed);
+
+			selection = states_treeview.get_selection ();
+			selection.changed.disconnect (on_states_treeview_selection_changed);
 			states_list.insert_with_values (out iter, -1, 0, dgettext (null, "Installed"));
 			//states_list.insert_with_values (out iter, -1, 0, dgettext (null, "Uninstalled"));
 			states_list.insert_with_values (out iter, -1, 0, dgettext (null, "Orphans"));
 			states_list.insert_with_values (out iter, -1, 0, dgettext (null, "To install"));
 			states_list.insert_with_values (out iter, -1, 0, dgettext (null, "To remove"));
+			states_list.get_iter_first (out iter);
+			selection.select_iter (iter);
+			selection.changed.connect_after (on_states_treeview_selection_changed);
 		}
 
 		public void set_infos_list (Pamac.Package pkg) {
@@ -654,11 +679,10 @@ namespace Pamac {
 
 		void on_explicitly_installed_item_activate () {
 			foreach (Pamac.Package pkg in selected_pkgs) {
-				transaction.set_pkgreason.begin (pkg.name, PkgReason.EXPLICIT, (obj, res) => {
-					transaction.set_pkgreason.end (res);
-					refresh_packages_list ();
-				});
+				transaction.set_pkgreason (pkg.name, PkgReason.EXPLICIT);
 			}
+			transaction.refresh_alpm_config ();
+			refresh_packages_list ();
 		}
 
 		[GtkCallback]
@@ -833,7 +857,7 @@ namespace Pamac {
 				search_pkgs.begin (search_string, (obj, res) => {
 					Json.Array aur_pkgs;
 					unowned Alpm.List<Alpm.Package?> pkgs = search_pkgs.end (res, out aur_pkgs);
-					if (pkgs.length != 0) {
+					if (pkgs.length != 0 || aur_pkgs.get_length () != 0) {
 						// add search string in search_list if needed
 						bool found = false;
 						TreeIter? iter;
@@ -855,27 +879,28 @@ namespace Pamac {
 									if ((string) line == search_string) {
 										found = true;
 										// block the signal to not populate when we select the iter in search_list
-										search_treeview_selection.changed.disconnect (on_search_treeview_selection_changed);
+										selection.changed.disconnect (on_search_treeview_selection_changed);
 										selection.select_iter (_iter);
-										search_treeview_selection.changed.connect_after (on_search_treeview_selection_changed);
+										selection.changed.connect_after (on_search_treeview_selection_changed);
 										populate_packages_list (pkgs, aur_pkgs);
 									}
 									return found;
 								});
 							}
 						}
-						if (!found) {
+						if (found == false) {
 							search_list.insert_with_values (out iter, -1, 0, search_string);
 							// block the signal to not populate when we select the iter in search_list
-							search_treeview_selection.changed.disconnect (on_search_treeview_selection_changed);
+							selection.changed.disconnect (on_search_treeview_selection_changed);
 							selection.select_iter (iter);
-							search_treeview_selection.changed.connect_after (on_search_treeview_selection_changed);
+							selection.changed.connect_after (on_search_treeview_selection_changed);
 							populate_packages_list (pkgs, aur_pkgs);
 						}
-					} else
+					} else {
 						// populate with empty lists
 						populate_packages_list (pkgs, aur_pkgs);
-					});
+					}
+				});
 			}
 		}
 
@@ -955,15 +980,11 @@ namespace Pamac {
 				} else if (state == dgettext (null, "Installed")) {
 					pkgs = transaction.handle.localdb.pkgcache;
 				} else if (state == dgettext (null, "Uninstalled")) {
-					unowned Alpm.List<Alpm.Package?> tmp = null;
-					unowned Alpm.List<Alpm.Package?> diff = null;
 					foreach (unowned DB db in transaction.handle.syncdbs) {
 						if (pkgs.length == 0)
-							pkgs = db.pkgcache;
+							pkgs = db.pkgcache.copy ();
 						else {
-							tmp = db.pkgcache;
-							diff = tmp.diff (pkgs, (Alpm.List.CompareFunc) pkgcmp);
-							pkgs.join (diff);
+							pkgs.join (db.pkgcache.diff (pkgs, (Alpm.List.CompareFunc) pkgcmp));
 						}
 					}
 				} else if (state == dgettext (null, "Orphans")) {
@@ -1094,11 +1115,9 @@ namespace Pamac {
 				if (refresh_period != pamac_config.refresh_period)
 					new_conf.insert ("RefreshPeriod", refresh_period.to_string ());
 				if (new_conf.size () != 0) {
-					transaction.write_config.begin (new_conf, (obj, res) => {
-						transaction.write_config.end (res);
-						pamac_config.reload ();
-						search_aur_button.set_active (pamac_config.enable_aur);
-					});
+					transaction.write_config (new_conf);
+					pamac_config.reload ();
+					search_aur_button.set_active (pamac_config.enable_aur);
 				}
 			}
 			preferences_dialog.hide ();
diff --git a/src/transaction.vala b/src/transaction.vala
index d3a3ff1..e1065c9 100644
--- a/src/transaction.vala
+++ b/src/transaction.vala
@@ -24,8 +24,8 @@ using Alpm;
 namespace Pamac {
 	[DBus (name = "org.manjaro.pamac")]
 	public interface Daemon : Object {
-		public abstract async void write_config (HashTable<string,string> new_conf) throws IOError;
-		public abstract async void set_pkgreason (string pkgname, uint reason) throws IOError;
+		public abstract void write_config (HashTable<string,string> new_conf) throws IOError;
+		public abstract void set_pkgreason (string pkgname, uint reason) throws IOError;
 		public abstract void refresh (int force, bool emit_signal) throws IOError;
 		public abstract ErrorInfos trans_init (TransFlag transflags) throws IOError;
 		public abstract ErrorInfos trans_sysupgrade (int enable_downgrade) throws IOError;
@@ -59,7 +59,6 @@ namespace Pamac {
 		public string[] holdpkg;
 		public string[] ignorepkg;
 		public Handle handle;
-		public Pamac.Config pamac_config;
 
 		public Alpm.TransFlag flags;
 		// those hashtables will be used as set
@@ -81,6 +80,9 @@ namespace Pamac {
 		bool sysupgrade_after_build;
 		int build_status;
 		int enable_downgrade;
+		public bool check_aur;
+		UpdatesInfos[] aur_updates;
+		bool aur_checked;
 
 		Terminal term;
 		Pty pty;
@@ -94,9 +96,8 @@ namespace Pamac {
 
 		public signal void finished (bool error);
 
-		public Transaction (ApplicationWindow? window, Pamac.Config pamac_config) {
+		public Transaction (ApplicationWindow? window) {
 			refresh_alpm_config ();
-			this.pamac_config = pamac_config;
 			mode = Mode.MANAGER;
 			flags = Alpm.TransFlag.CASCADE;
 			to_add = new HashTable<string, string> (str_hash, str_equal);
@@ -142,19 +143,22 @@ namespace Pamac {
 			sysupgrade_after_trans = false;
 			sysupgrade_after_build = false;
 			build_status = 0;
+			check_aur = false;
+			aur_updates = {};
+			aur_checked = false;
 		}
 
-		public async void write_config (HashTable<string,string> new_conf) {
+		public void write_config (HashTable<string,string> new_conf) {
 			try {
-				yield daemon.write_config (new_conf);
+				daemon.write_config (new_conf);
 			} catch (IOError e) {
 				stderr.printf ("IOError: %s\n", e.message);
 			}
 		}
 
-		public async void set_pkgreason (string pkgname, PkgReason reason) {
+		public void set_pkgreason (string pkgname, PkgReason reason) {
 			try {
-				yield daemon.set_pkgreason (pkgname, (uint) reason);
+				daemon.set_pkgreason (pkgname, (uint) reason);
 				refresh_alpm_config ();
 			} catch (IOError e) {
 				stderr.printf ("IOError: %s\n", e.message);
@@ -247,8 +251,11 @@ namespace Pamac {
 			} else {
 				UpdatesInfos[] updates = get_repos_updates (handle, ignorepkg);
 				uint repos_updates_len = updates.length;
-				if (pamac_config.enable_aur) {
-					UpdatesInfos[] aur_updates = get_aur_updates (handle, ignorepkg);
+				if (check_aur) {
+					if (aur_checked == false) {
+						aur_updates = get_aur_updates (handle, ignorepkg);
+						aur_checked = true;
+					}
 					if (aur_updates.length != 0) {
 						clear_lists ();
 						if (repos_updates_len != 0)
@@ -749,22 +756,32 @@ namespace Pamac {
 			}
 			if (total_download > 0) {
 				fraction = (float) (xfered + already_downloaded) / total_download;
-				textbar = "%s/%s".printf (format_size (xfered + already_downloaded), format_size (total_download));
+				if (fraction > 0)
+					textbar = "%s/%s".printf (format_size (xfered + already_downloaded), format_size (total_download));
+				else
+					textbar = "%s".printf (format_size (xfered + already_downloaded));
 			} else {
 				fraction = (float) xfered / total;
-				textbar = "%s/%s".printf (format_size (xfered), format_size (total));
+				if (fraction > 0)
+					textbar = "%s/%s".printf (format_size (xfered), format_size (total));
+				else
+					textbar = "%s".printf (format_size (xfered));
 			}
-			if (fraction != previous_percent) {
-				previous_percent = fraction;
-				progress_dialog.progressbar.set_fraction (fraction);
-			}
-			
+			if (fraction > 0) {
+				if (fraction != previous_percent) {
+					previous_percent = fraction;
+					progress_dialog.progressbar.set_fraction (fraction);
+				}
+			} else
+				progress_dialog.progressbar.set_fraction (0);
 			if (textbar != previous_textbar) {
 				previous_textbar = textbar;
 				progress_dialog.progressbar.set_text (textbar);
 			}
-			if (xfered == total)
+			if (xfered == total) {
 				already_downloaded += total;
+				previous_filename = "";
+			}
 		}
 
 		void on_emit_totaldownload (uint64 total) {
diff --git a/src/updater_window.vala b/src/updater_window.vala
index ac9b160..9f6429c 100644
--- a/src/updater_window.vala
+++ b/src/updater_window.vala
@@ -47,17 +47,17 @@ namespace Pamac {
 			updates_list = new Gtk.ListStore (2, typeof (string), typeof (string));
 			updates_treeview.set_model (updates_list);
 
-			transaction = new Transaction (this as ApplicationWindow, pamac_config);
+			transaction = new Transaction (this as ApplicationWindow);
 			transaction.mode = Mode.UPDATER;
+			transaction.check_aur = pamac_config.enable_aur;
 			transaction.finished.connect (on_emit_trans_finished);
 
 			preferences_dialog = new PreferencesDialog (this as ApplicationWindow);
 
-			top_label.set_markup("<b>%s</b>".printf (dgettext (null, "Your system is up-to-date")));
 			bottom_label.set_visible (false);
 			apply_button.set_sensitive (false);
 
-			transaction.refresh (0);
+			on_refresh_button_clicked ();
 		}
 
 		[GtkCallback]
@@ -84,11 +84,9 @@ namespace Pamac {
 				if (refresh_period != pamac_config.refresh_period)
 					new_conf.insert ("RefreshPeriod", refresh_period.to_string ());
 				if (new_conf.size () != 0) {
-					transaction.write_config.begin (new_conf, (obj, res) => {
-						transaction.write_config.end (res);
-						pamac_config.reload ();
-						set_updates_list.begin ();
-					});
+					transaction.write_config (new_conf);
+					pamac_config.reload ();
+					set_updates_list.begin ();
 				}
 			}
 			preferences_dialog.hide ();
@@ -118,12 +116,7 @@ namespace Pamac {
 		}
 
 		public void on_emit_trans_finished (bool error) {
-			while (Gtk.events_pending ())
-				Gtk.main_iteration ();
-			set_updates_list.begin ((obj, res) => {
-				set_updates_list.end (res);
-				this.get_window ().set_cursor (null);
-			});
+			set_updates_list.begin ();
 		}
 
 		public async void set_updates_list () {
@@ -132,6 +125,10 @@ namespace Pamac {
 			string size;
 			uint64 dsize = 0;
 			uint updates_nb = 0;
+			this.get_window ().set_cursor (new Gdk.Cursor (Gdk.CursorType.WATCH));
+			while (Gtk.events_pending ())
+				Gtk.main_iteration ();
+			top_label.set_markup ("");
 			updates_list.clear ();
 			// get syncfirst updates
 			UpdatesInfos[] syncfirst_updates = get_syncfirst_updates (transaction.handle, transaction.syncfirst);
@@ -147,6 +144,8 @@ namespace Pamac {
 					updates_list.insert_with_values (out iter, -1, 0, name, 1, size);
 				}
 			} else {
+				while (Gtk.events_pending ())
+					Gtk.main_iteration ();
 				UpdatesInfos[] updates = get_repos_updates (transaction.handle, transaction.ignorepkg);
 				foreach (UpdatesInfos infos in updates) {
 					name = infos.name + " " + infos.version;
@@ -187,6 +186,10 @@ namespace Pamac {
 				bottom_label.set_visible (true);
 			} else
 				bottom_label.set_visible (false);
+
+			this.get_window ().set_cursor (null);
+			while (Gtk.events_pending ())
+				Gtk.main_iteration ();
 		}
 	}
 }
diff --git a/vapi/libalpm.vapi b/vapi/libalpm.vapi
index 674e79d..d50a4db 100644
--- a/vapi/libalpm.vapi
+++ b/vapi/libalpm.vapi
@@ -34,7 +34,7 @@ namespace Alpm {
 	public unowned Package? find_satisfier(Alpm.List<Package> pkgs, string depstring);
 	public unowned Package? pkg_find(Alpm.List<Package> haystack, string needle);
 	public int pkg_vercmp(string a, string b);
-	public unowned Alpm.List<Package?> find_group_pkgs(Alpm.List<DB> dbs, string name);
+	public unowned Alpm.List<unowned Package?> find_group_pkgs(Alpm.List<DB> dbs, string name);
 	public unowned Package? sync_newversion(Package pkg, Alpm.List<DB> dbs);
 	/** Returns the string corresponding to an error number. */
 	public unowned string strerror(Errno err);
@@ -247,7 +247,7 @@ namespace Alpm {
 				[CCode (cname = "alpm_get_localdb")] get;
 		}
 
-		public unowned Alpm.List<DB?> syncdbs {
+		public unowned Alpm.List<unowned DB?> syncdbs {
 				[CCode (cname = "alpm_get_syncdbs")] get;
 		}
 
@@ -281,11 +281,11 @@ namespace Alpm {
 
 		/** Returns a list of packages added by the transaction.*/
 		[CCode (cname = "alpm_trans_get_add")]
-		public unowned Alpm.List<Package?> trans_to_add();
+		public unowned Alpm.List<unowned Package?> trans_to_add();
 
 		/** Returns the list of packages removed by the transaction.*/
 		[CCode (cname = "alpm_trans_get_remove")]
-		public unowned Alpm.List<Package?> trans_to_remove();
+		public unowned Alpm.List<unowned Package?> trans_to_remove();
 
 		public LogCallBack logcb {
 			[CCode (cname = "alpm_option_get_logcb")] get;
@@ -406,11 +406,11 @@ namespace Alpm {
 			[CCode (cname = "alpm_db_set_servers")] set;
 		}
 
-		public unowned Alpm.List<Package?> pkgcache {
+		public unowned Alpm.List<unowned Package?> pkgcache {
 			[CCode (cname = "alpm_db_get_pkgcache")] get;
 		}
 
-		public unowned Alpm.List<Group?> groupcache {
+		public unowned Alpm.List<unowned Group?> groupcache {
 			[CCode (cname = "alpm_db_get_groupcache")] get;
 		}
 
@@ -422,7 +422,7 @@ namespace Alpm {
 
 		public unowned Package? get_pkg(string name);
 		public unowned Group? get_group(string name);
-		public unowned Alpm.List<Package?> search(Alpm.List<string> needles);
+		public unowned Alpm.List<unowned Package?> search(Alpm.List<string> needles);
 	}
 
 	/**
@@ -505,25 +505,25 @@ namespace Alpm {
 		public unowned Alpm.List<unowned string?> groups {
 			[CCode (cname = "alpm_pkg_get_groups")] get;
 		}
-		public unowned Alpm.List<Depend?> depends {
+		public unowned Alpm.List<unowned Depend?> depends {
 			[CCode (cname = "alpm_pkg_get_depends")] get;
 		}
-		public unowned Alpm.List<Depend?> optdepends {
+		public unowned Alpm.List<unowned Depend?> optdepends {
 			[CCode (cname = "alpm_pkg_get_optdepends")] get;
 		}
-		public unowned Alpm.List<Depend?> conflicts {
+		public unowned Alpm.List<unowned Depend?> conflicts {
 			[CCode (cname = "alpm_pkg_get_conflicts")] get;
 		}
-		public unowned Alpm.List<Depend?> provides {
+		public unowned Alpm.List<unowned Depend?> provides {
 			[CCode (cname = "alpm_pkg_get_provides")] get;
 		}
-		public unowned Alpm.List<Depend?> replaces {
+		public unowned Alpm.List<unowned Depend?> replaces {
 			[CCode (cname = "alpm_pkg_get_replaces")] get;
 		}
-		public unowned Alpm.List<File?> files {
+		public unowned Alpm.List<unowned File?> files {
 			[CCode (cname = "alpm_pkg_get_files_list")] get;
 		}
-		public unowned Alpm.List<Backup?> backup {
+		public unowned Alpm.List<unowned Backup?> backup {
 			[CCode (cname = "alpm_pkg_get_backup")] get;
 		}
 		public unowned DB? db {
@@ -579,7 +579,7 @@ namespace Alpm {
 	[CCode (cname = "alpm_group_t", has_type_id = false)]
 	public class Group {
 		public string name;
-		public unowned Alpm.List<Package?> packages;
+		public unowned Alpm.List<unowned Package?> packages;
 	}
 
 	/** Package upgrade delta */
@@ -988,7 +988,8 @@ namespace Alpm {
 		[CCode (cname = "alpm_list_remove_data"), ReturnsModifiedPointer ()]
 		public unowned void? remove(G data, CompareFunc fn);
 
-		public List<G> copy();
+		public unowned List<G> copy();
+		public List<G> copy_data();
 
 		[ReturnsModifiedPointer ()]
 		public unowned void reverse ();