diff --git a/entry/src/main/ets/entryability/EntryAbility.ets b/entry/src/main/ets/entryability/EntryAbility.ets
index de5da3875d7b897f8873668e0cad47cf78d3544b..e10e78a68328c335ed4769eeb9047ed4bfad8eff 100644
--- a/entry/src/main/ets/entryability/EntryAbility.ets
+++ b/entry/src/main/ets/entryability/EntryAbility.ets
@@ -51,8 +51,10 @@ export default class EntryAbility extends UIAbility {
         });
         windowClass = data;
         if (deviceInfo.deviceType === '2in1') {
-          data.setWindowDecorVisible(false);
-          data.setWindowDecorHeight(64);
+          if (canIUse('SystemCapability.Window.SessionManager')) {
+            data.setWindowDecorVisible(false);
+            data.setWindowDecorHeight(64);
+          }
         } else {
           windowClass.setWindowLayoutFullScreen(true).then(() => {
             hilog.info(0x0000, TAG, 'Succeeded in setting the window layout to full-screen mode.');