diff -ur ukui-settings-daemon-3.0.1/plugins/media-keys/usd-media-keys-manager.c ukui-settings-daemon-3.0.1~/plugins/media-keys/usd-media-keys-manager.c
--- ukui-settings-daemon-3.0.1/plugins/media-keys/usd-media-keys-manager.c	2019-05-27 15:48:18.000000000 +0800
+++ ukui-settings-daemon-3.0.1~/plugins/media-keys/usd-media-keys-manager.c	2020-10-30 14:36:42.336523345 +0800
@@ -995,19 +994,19 @@
 static void
 do_screenshot_action (UsdMediaKeysManager *manager)
 {
-        execute (manager, "mate-screenshot",FALSE,FALSE);
+        //execute (manager, "mate-screenshot",FALSE,FALSE);
 }
 
 static void
 do_area_screenshot_action (UsdMediaKeysManager *manager)
 {
-        execute (manager, "mate-screenshot -a",FALSE,FALSE);
+        //execute (manager, "mate-screenshot -a",FALSE,FALSE);
 }
 
 static void
 do_window_screenshot_action (UsdMediaKeysManager *manager)
 {
-        execute (manager, "mate-screenshot -w",FALSE,FALSE);
+        //execute (manager, "mate-screenshot -w",FALSE,FALSE);
 }
 
 
@@ -1052,7 +1051,7 @@
                 } else if ((cmd = g_find_program_in_path ("tracker-search-tool"))) {
                         execute (manager, "tracker-search-tool", FALSE, FALSE);
                 } else {
-                        execute (manager, "mate-search-tool", FALSE, FALSE);
+                        //execute (manager, "mate-search-tool", FALSE, FALSE);
                 }
                 g_free (cmd);
                 break;