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。

If you already have an account signed in to OneDrive and you want to add or remove another account, you’ll do that in OneDrive Settings.

Learn how to install Windows 7 Service Pack 1 (SP1). Includes info about how to get the download, requirements, and more.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

Learn about what effect closing a Microsoft account might have on your other apps and services.

The Microsoft Teams web app works for most desktop browsers, including Chrome, Firefox, and Internet Explorer.

Learn how Smart charging in Windows can help your battery last longer over time.

Summary. Microsoft Update Health Tools is offered to devices through Windows Update as update KB4023057. This update is applicable for both Windows consumer and commercial devices, with a slightly different purpose and functionality.

Find out the steps you can take if you receive a message telling you a driver can't load on your device.

Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.