有时用户报告文件资源管理器^{(File Explorer)}或Chrome或^(Chrome)Windows 11/10中的任何其他应用程序的顶部出现白条。该栏不可用，即使您右键单击它也不会发生任何事情。问题与图形、屏幕分辨率和显示器有关。这篇文章将帮助您解决问题。

^{(White Bar)}覆盖Explorer顶部的^(Explorer)白条

如果您在Windows Explorer^{(Windows Explorer)}、Chrome、Teams或任何其他应用程序的顶部看到一个白条，那么这里的建议肯定会帮助您解决问题。这是因为分辨率或缩放问题。GPU无法扩展应用程序，或者分辨率不正确导致出现白条。

1. ^{(Change Screen Resolution)}使用NVIDIA 控制面板^{(NVIDIA Control Panel)}更改屏幕分辨率。
2. ^{(Scale Full Screen)}为英特尔核芯显卡^{(Intel HD Graphics)}缩放全屏
3. 重新启动桌面窗口管理器^{(Desktop Window Manager)}进程。

您可能需要管理员权限才能执行这些解决方案之一。

1]使用NVIDIA 控制面板^{(NVIDIA Control Panel)}更改屏幕分辨率^{(Change Screen Resolution)}。

• 右键单击^{(Right-click)}桌面上的空白区域，然后选择  NVIDIA 控制面板^{(NVIDIA Control Panel)}选项。
• 切换到显示设置^{(Display Settings)}，然后选择更改分辨率
• 即使分辨率正确，也将其更改为任何内容，然后确认。
• 再次更改为较旧的分辨率或最适合屏幕的分辨率，然后应用。

这个和下一个方法会删除由于驱动程序问题而出现的任何不需要的白条。

2]为英特尔高清显卡^{(Intel HD Graphics)}缩放全屏^{(Scale Full Screen)}

• 右键单击^{(Right-click)}桌面并选择Intel HD Graphics设置
• 在设置中，找到Display，然后选择Scale Full Screen选项。
• 确保选项覆盖应用程序设置^{(Override Application Settings)} 已标记复选框。

这将确保英特尔高清^{(Intel HD)}显卡设置将决定如何处理全屏分辨率而不是Windows。Windows中的显示设置允许您设置放大，这可能是导致问题的原因。

3]重新启动^(Restart)桌面窗口管理器^{(Desktop Window Manager)}进程

这可能是一次性问题，重新启动桌面窗口管理器^{(Desktop Window Manager)}可以解决此问题。

• 右键单击^{(Right-click)}任务栏，然后选择任务管理器^{(Task Manager)}
• 在Processes选项卡下，找到Desktop Window Manager。
• 右键单击它，然后选择结束任务。
• 注销，然后再次登录，希望白条不再存在。

如果没有其他方法，并且问题是最近出现的，您可以尝试将计算机恢复到良好状态。它可能会撤消导致问题的任何原因。但是，您仍然需要通过仔细监控您更新的任何内容或Windows^(Windows)在更新过程中所做的事情来找出导致问题的原因。

类似阅读^{(Similar read)}：最大化窗口在屏幕顶部留下空白区域。

White Bar covering Top Portion of Windows Explorer or any other app

At times users have reported a white bar оn the top portion of Fіle Explorer or Chrome or any other application in Windows 11/10. The bar is not usable, and nothing happens even when you make a right-click on it. The prоblem is related tо graphics, and the resolution of the screen, аnd thе monitor. Thіs post will help you resolve the problem.

White Bar covering Top Portion of Explorer

If you see a white bar at the top of Windows Explorer, Chrome, Teams, or any other app, here are suggestions that are sure to help you fix the issue. This happens because of the resolution or scaling issues. The GPU is not able to scale apps, or there is an incorrect resolution leading to a white bar.

1. Change Screen Resolution using the NVIDIA Control Panel.
2. Scale Full Screen for Intel HD Graphics
3. Restart the Desktop Window Manager process.

You may need admin permission to execute one of these solutions.

1] Change Screen Resolution using the NVIDIA Control Panel.

• Right-click on an empty area on the desktop, and select the  NVIDIA Control Panel option.
• Switch to Display Settings, and then select  change resolution
• Even if the resolutions are correct, change it to anything, and confirm.
• Change again into the older resolution or the one that works best for the screen, and apply.

This and the next method removes any unwanted white bar that occurs because of the driver issue.

2] Scale Full Screen for Intel HD Graphics

• Right-click on the desktop and select Intel HD Graphics settings
• In the settings, locate Display, and then choose the option Scale Full Screen.
• Make sure the option Override Application Settings has the checkbox marked.

This will ensure that Intel HD graphics settings will dictate how to handle full-screen resolution instead of Windows. The display settings in Windows allow you to set upscaling, and it might have caused the problem.

3] Restart the Desktop Window Manager process

This can be a one-off issue, and restarting Desktop Window Manager can resolve this.

• Right-click on the taskbar, and select Task Manager
• Under the Processes tab, locate the Desktop Window Manager.
• Right-click on it, and select the end task.
• Sign-out, and then sign-in again, and hopefully, the white bar will not be there anymore.

If nothing else works, and the problem is recent, you can try restoring the computer to a good state. It may undo whatever caused the problem. However, you will still have to figure out what caused the problem by carefully monitoring anything you update or Windows does through the update process.

Similar read: Maximized window leaves blank space on top of the screen.

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