Expand the top level of the Outlook data file in the Outlook Navigation pane to see the subfolders in the file. Click each subfolder to see the contents.

Press Ctrl + Alt + Delete to open Task Manager.If you don’t see Task Manager after pressing Ctrl + Alt + Delete, press Ctrl + Shift + Esc to open Task Manager.. If Task Manager flickers along with everything else on the screen, a display driver is probably causing the problem.

Learn how to change settings to enable Secure Boot if you are not able to upgrade to Windows 11 because your PC is not currently Secure Boot capable.

下面是声音设备制造商的驱动程序下载页面的示例。 如果安装更新后有声音问题 如果音频在你运行 Windows 更新前正常工作，现在无法正常工作，请尝试回退音频驱动程序。

At this state. Press this key. To do this. Before focus enters the candidate window. Down arrow Enter the candidate window. Up arrow. Change to another candidate without opening the candidate window.

To use your camera with apps on Windows 11, you'll need to turn on some permissions in Camera settings. Then, you'll need to check your app permissions if you want to use your camera with apps.

If your PC is running slowly, the following suggestions might help speed things up. The tips are listed in order, so start with the first one, see if that helps, and then continue to the next one if it doesn’t.

Note: Use these steps for Windows programs.If you're having problems with an app you got from Microsoft Store, go to Fix problems with apps from Microsoft Store.

Release Channel. Available. Next Step. Windows Update or Microsoft Update. Yes. Go to Settings > Windows Update > Advanced options > Optional updates.On the Optional updates page, you’ll find the link to download and install this update. Windows Update for Business. No. See the other release channel options.

Set up PC folder backup. Open OneDrive settings (select the OneDrive cloud icon in your notification area, and then select the OneDrive Help & Settings icon then Settings.). Open OneDrive settings (select the OneDrive cloud icon in your notification area, and then select the OneDrive Help and Settings icon then Settings.)