diff --git a/src/data/Game.vala b/src/data/Game.vala
index b6f961fd..2a73c8dc 100644
--- a/src/data/Game.vala
+++ b/src/data/Game.vala
@@ -168,6 +168,8 @@ namespace GameHub.Data
 
 		public abstract class Installer
 		{
+			private static string NSIS_INSTALLER_DESCRIPTION = "Nullsoft Installer";
+
 			public class Part: Object
 			{
 				public string id     { get; construct set; }
@@ -228,6 +230,7 @@ namespace GameHub.Data
 
 					uint f = 0;
 					bool windows_installer = false;
+					bool nsis_installer = false;
 					foreach(var file in files)
 					{
 						var path = file.get_path();
@@ -237,6 +240,15 @@ namespace GameHub.Data
 
 						var type = yield guess_type(file, f > 0);
 
+						if(type == InstallerType.WINDOWS_EXECUTABLE)
+						{
+							var desc = yield Utils.run_thread({"file", "-b", path});
+							if(desc != null && desc.length > 0 && NSIS_INSTALLER_DESCRIPTION in desc)
+							{
+								type = InstallerType.WINDOWS_NSIS_INSTALLER;
+							}
+						}
+
 						string[]? cmd = null;
 
 						switch(type)
@@ -248,6 +260,7 @@ namespace GameHub.Data
 								break;
 
 							case InstallerType.ARCHIVE:
+							case InstallerType.WINDOWS_NSIS_INSTALLER:
 								cmd = {"file-roller", path, "-e", game.install_dir.get_path()}; // extract with file-roller
 								break;
 
@@ -275,11 +288,20 @@ namespace GameHub.Data
 								yield tool.install(game, file);
 							}
 						}
+						else if(type == InstallerType.WINDOWS_NSIS_INSTALLER)
+						{
+							nsis_installer = true;
+						}
 						f++;
 					}
 
 					try
 					{
+						if(nsis_installer)
+						{
+							FSUtils.rm(game.install_dir.get_path(), "\\$*DIR", "-rf"); // remove anything like $PLUGINSDIR
+						}
+
 						string? dirname = null;
 						FileInfo? finfo = null;
 						var enumerator = yield game.install_dir.enumerate_children_async("standard::*", FileQueryInfoFlags.NOFOLLOW_SYMLINKS);
@@ -390,7 +412,7 @@ namespace GameHub.Data
 
 			public enum InstallerType
 			{
-				UNKNOWN, EXECUTABLE, WINDOWS_EXECUTABLE, GOG_PART, ARCHIVE;
+				UNKNOWN, EXECUTABLE, WINDOWS_EXECUTABLE, GOG_PART, ARCHIVE, WINDOWS_NSIS_INSTALLER;
 
 				public static InstallerType from_mime(string type)
 				{
diff --git a/src/ui/dialogs/SettingsDialog/tabs/GOG.vala b/src/ui/dialogs/SettingsDialog/tabs/GOG.vala
index eb95b28f..686c0830 100644
--- a/src/ui/dialogs/SettingsDialog/tabs/GOG.vala
+++ b/src/ui/dialogs/SettingsDialog/tabs/GOG.vala
@@ -26,6 +26,7 @@ namespace GameHub.UI.Dialogs.SettingsDialog.Tabs
 	{
 		private Settings.Auth.GOG gog_auth;
 		private Box enabled_box;
+		private Button logout_btn;
 
 		public GOG(SettingsDialog dlg)
 		{
@@ -42,11 +43,24 @@ namespace GameHub.UI.Dialogs.SettingsDialog.Tabs
 
 			add_separator();
 
-
 			add_file_chooser(_("Games directory"), FileChooserAction.SELECT_FOLDER, paths.gog_games, v => { paths.gog_games = v; dialog.show_restart_message(); });
 
 			//add_cache_directory(_("Installers cache"), FSUtils.Paths.GOG.Installers);
 
+			add_separator();
+
+			logout_btn = new Button.with_label(_("Logout"));
+			logout_btn.halign = Align.END;
+			add_widget(logout_btn);
+
+			logout_btn.clicked.connect(() => {
+				gog_auth.authenticated = false;
+				gog_auth.access_token = "";
+				gog_auth.refresh_token = "";
+				update();
+				dialog.show_restart_message();
+			});
+
 			update();
 		}
 
@@ -55,6 +69,7 @@ namespace GameHub.UI.Dialogs.SettingsDialog.Tabs
 			this.foreach(w => {
 				if(w != enabled_box) w.sensitive = gog_auth.enabled;
 			});
+			logout_btn.sensitive = gog_auth.enabled && gog_auth.authenticated && gog_auth.access_token.length > 0;
 		}
 
 	}
diff --git a/src/ui/dialogs/SettingsDialog/tabs/Humble.vala b/src/ui/dialogs/SettingsDialog/tabs/Humble.vala
index c2e5642f..ecbcaaff 100644
--- a/src/ui/dialogs/SettingsDialog/tabs/Humble.vala
+++ b/src/ui/dialogs/SettingsDialog/tabs/Humble.vala
@@ -26,6 +26,7 @@ namespace GameHub.UI.Dialogs.SettingsDialog.Tabs
 	{
 		private Settings.Auth.Humble humble_auth;
 		private Box enabled_box;
+		private Button logout_btn;
 
 		public Humble(SettingsDialog dlg)
 		{
@@ -49,6 +50,19 @@ namespace GameHub.UI.Dialogs.SettingsDialog.Tabs
 
 			//add_cache_directory(_("Installers cache"), FSUtils.Paths.Humble.Installers);
 
+			add_separator();
+
+			logout_btn = new Button.with_label(_("Logout"));
+			logout_btn.halign = Align.END;
+			add_widget(logout_btn);
+
+			logout_btn.clicked.connect(() => {
+				humble_auth.authenticated = false;
+				humble_auth.access_token = "";
+				update();
+				dialog.show_restart_message();
+			});
+
 			update();
 		}
 
@@ -57,6 +71,7 @@ namespace GameHub.UI.Dialogs.SettingsDialog.Tabs
 			this.foreach(w => {
 				if(w != enabled_box) w.sensitive = humble_auth.enabled;
 			});
+			logout_btn.sensitive = humble_auth.enabled && humble_auth.authenticated && humble_auth.access_token.length > 0;
 		}
 
 	}