Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

You may see an "account frozen" message and icon if you have exceeded your storage allowance and/or haven't signed in for a long time. You just need to get back under your Microsoft storage quota to get access to your files again.

Use the Xbox Accessories app to configure your controller or headset for your preferred gaming experience.

Manage captions for pictures, tables, equations, and other objects in your documents.

如果你在下载和安装 Windows 更新时收到错误代码，更新疑难解答可以帮助解决该问题。 选择“开始 ”>“设置 ”>“系统 ”>“疑难解答 ”>“其他疑难解答”。 接下来，在 最常用的下，选择 Windows 更新 > 运行。. 运行完疑难解答后，最好重启设备。

What to do when the camera in Windows 10 can't take pictures because of a missing Camera Roll (errors 0xA00F4275, 0xA00F4244, 0x200F4244).

Describes how use Wusa.exe to install and uninstall update packages in Windows Vista, Windows Server 2008, Windows 7, Windows Server 2008 R2, Windows 8, Windows Server 2012, Windows 8.1, Windows Server 2012 R2, Windows 10, and Windows Server 2016 Technical Preview.

Questions and answers about artificial intelligence (AI), and how it's used in Microsoft products such as Microsoft Copilot.

扩展或加载项是自定义浏览器体验并为你提供更多控制权的简单工具。 下面介绍如何在 Microsoft Edge 中添加、关闭和删除扩展或加载项 。

Learn about the latest features and extras available to you for Microsoft 365 Copilot, Windows, Surface, Microsoft Edge, and more.