diff --git a/flutter/lib/desktop/pages/desktop_home_page.dart b/flutter/lib/desktop/pages/desktop_home_page.dart
index b9af2dc7b..339ecddb0 100644
--- a/flutter/lib/desktop/pages/desktop_home_page.dart
+++ b/flutter/lib/desktop/pages/desktop_home_page.dart
@@ -430,12 +430,10 @@ class _DesktopHomePageState extends State<DesktopHomePage>
   }
 
   Widget buildHelpCards(String updateUrl) {
-    final isWindowsInstalled = isWindows && bind.mainIsInstalled();
-    if (updateUrl.isNotEmpty &&
+    if (!bind.isCustomClient() &&
+        updateUrl.isNotEmpty &&
         !isCardClosed &&
-        (isWindowsInstalled ||
-            (!bind.isCustomClient() &&
-                bind.mainUriPrefixSync().contains('rustdesk')))) {
+        bind.mainUriPrefixSync().contains('rustdesk')) {
       final isToUpdate = (isWindows || isMacOS) && bind.mainIsInstalled();
       String btnText = isToUpdate ? 'Update' : 'Download';
       GestureTapCallback onPressed = () async {
diff --git a/src/common.rs b/src/common.rs
index d2c252869..3e23770c6 100644
--- a/src/common.rs
+++ b/src/common.rs
@@ -940,9 +940,7 @@ pub fn is_modifier(evt: &KeyEvent) -> bool {
 }
 
 pub fn check_software_update() {
-    let is_windows_installed = cfg!(target_os = "windows") && is_installed();
-    let should_check_update = is_windows_installed || !is_custom_client();
-    if !should_check_update {
+    if is_custom_client() {
         return;
     }
     let opt = LocalConfig::get_option(keys::OPTION_ENABLE_CHECK_UPDATE);