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

Learn how to troubleshoot USB-C problems in Windows and fix USB devices, ports, and adapters not working properly.

We recommend always having the latest version of Windows installed to make sure you get the best experience with the Phone Link .

An upgrade differs from an update in that it moves your PC from a previous version of Windows—such as Windows 10—to Windows 11. This FAQ is intended to answer questions about upgrading to Windows 11.

Check the Xbox services, games, and apps for any service outages.

Find out how to install the latest driver for your printer. If you recently upgraded Windows, your printer driver might need to be reinstalled.

Free. 免费锁屏提醒表示活动Microsoft 365 家庭版或个人订阅不与登录帐户相关联。. 只有 Word、Excel 和 PowerPoint 的免费 Web 版本可供使用。 若要在浏览器中访问这些应用，只需使用 Microsoft 帐户登录到 Microsoft365.com，并从应用启动器 选择所需的应用。. 免费试用Word、Excel 和 PowerPoint

There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you, or use our troubleshooter to help guide you.

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

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。