开始之前 确保要安装 Windows 11 的设备满足最低系统要求。如果设备当前正在运行 Windows 10，建议使用电脑健康状况检查应用验证最低系统要求。 我们不建议在不符合要求的设备上安装 Windows 11。 有关详细信息，请参阅在不符合最低系统要求的电脑上安装 Windows 11。

Use System restore to make restore points when you install a new app, driver, or Windows update, and when you create a restore point manually.

Use Microsoft Teams (work or school) for a Microsoft work or school account or a guest account in Windows 11. Also, find out which version of Teams you’re using.

Learn how to run Windows Update Troubleshooter to resolve errors downloading or installing Windows updates.

Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.

Hotmail est maintenant Outlook.com. Découvrez comment vous connecter pour accéder à votre compte de messagerie Outlook.com, Hotmail, Live ou MSN.

Learn how to view and delete your browser history and other history in Microsoft Edge.

If your purchase of Office or Microsoft 365 came with a product key, you enter your product key on one of the websites listed below for your product.

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.

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