了解如何安装 Windows 7 Service Pack 1 (SP1)。 包含有关如何获取下载、要求和其他内容的信息。

Learn how to protect your PC, identity, and data from tech support scams.

Learn how to change your status or availability in Microsoft Teams, set a duration for your status, and see who's online.

If your camera is unable to capture the QR code, you can manually add your account information to the Microsoft Authenticator app for two-factor verification.

Get troubleshooting tips if you run into problems downloading, installing, or updating Microsoft Edge.

Resolve Windows blue screen errors with tips and resources to do your own troubleshooting, or contact the Microsoft support if you need more help.

Learn how to join a Microsoft Teams meeting if you don't have an account. Join a Teams meeting as a guest in the Windows app or on the web.

Learn how to fix Outlook.com email sync issues if you can't receive or send messages.

Get help connecting your Gmail account to Outlook or Mail for Windows 10.

Describes how to troubleshoot problems that occur when you install, uninstall, or upgrade a program on a Windows-based computer by using Windows Installer.