检查你的版本. DirectX 是许多 Windows 游戏都需要的一种多媒体技术套件。 如果你的电脑未安装正确版本的 DirectX（产品包装盒上应标有所需的版本），游戏可能无法正常运行。

There are a lot of ways to customize your video experience when you join a Teams meeting or call. You can add a custom background, change the video layout you see on your screen, and much more. Here's how.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page.You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

Learn how to create a OneDrive backup on your PC. Set up OneDrive PC folder backup to access, manage, stop, or fix problems with PC folder backup.

Here's how to get the Recycle Bin on your desktop: Select the Start button in the lower-left corner of the taskbar, then Settings.

Use family safety settings to block inappropriate websites and searches on Windows, Xbox and mobile devices.

Learn how to create and add a signature to email messages you send in Outlook.com.

Learn how to make items on the screen appear larger by using Magnifier in Windows.

To import a text file, you can open the file or import the text file as an external data range. To export a text file, use the Save As command.

Learn how to create a password reset disk for a local account in Windows 10 and Windows 11.