diff --git a/app/src/protyle/breadcrumb/action.ts b/app/src/protyle/breadcrumb/action.ts
index 515cdd3cb..6edd6a2dd 100644
--- a/app/src/protyle/breadcrumb/action.ts
+++ b/app/src/protyle/breadcrumb/action.ts
@@ -62,7 +62,7 @@ export const fullscreen = (element: Element, btnElement?: Element) => {
         /// #endif
     }
     /// #if !MOBILE
-    if ("darwin" !== window.siyuan.config.system.os) {
+    if ("darwin" !== window.siyuan.config.system.os && !isWindow()) {
         const windowControlsElement = document.getElementById("windowControls");
         if (isFullscreen) {
             windowControlsElement.style.zIndex = "";
@@ -107,15 +107,6 @@ export const fullscreen = (element: Element, btnElement?: Element) => {
             }
         }
     });
-    if ("darwin" !== window.siyuan.config.system.os) {
-        const windowControlsElement = document.getElementById("windowControls");
-        if (isFullscreen) {
-            windowControlsElement.style.zIndex = "";
-        } else {
-            window.siyuan.zIndex++;
-            windowControlsElement.style.zIndex = window.siyuan.zIndex.toString();
-        }
-    }
     /// #endif
 };