Having a backup copy of your BitLocker recovery key helps to prevent serious issues later. It takes less than a minute to back up your key and this article will show you 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. For answers to common questions, including how to get back into a compromised account and secure or ...

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

On the Tools menu, click Internet Options, and then click the Content tab. Click Certificates, and then click the Personal tab. Important: If you digitally sign a document by using a digital certificate that you created, and then you share the digitally-signed file, other people cannot verify the authenticity of your digital signature without ...

You can add an input language in Settings. Adding an input language lets you set a language-preference order for websites and apps. It also lets you change your keyboard language.

Learn how to get Microsoft Store updates for your apps and games. Download the latest versions of Microsoft Store apps and games.

Learn how to use the Settings app to view and change display settings in Windows.

In the navigation pane, select Recycle bin. Select the files or folders you want to restore by pointing to each item and clicking the circle check box that appears, and then click Restore. Tip: If you're using OneDrive with your personal account, you can select Restore all items to restore everything in your recycle bin.

如果你使用的是 Windows 11，并在使用 Microsoft Store 中的应用时遇到问题，请考虑这些更新和修复程序。

Learn how to use and install mobile apps on your Windows 11 PC with the Windows Subsystem for Android™.