Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

可以通过使用 USB 电缆、适用于 Windows 的 Xbox 无线适配器或蓝牙将控制器连接到 Windows 设备。 有些 Windows 设备还附带了 Xbox 无线功能，因此无需适配器即可直接连接控制器。

Learn how to find which version of Windows operating system your PC is running and device specifications.

Learn how to turn on device encryption, or standard BitLocker encryption in Windows.

Learn how to get ready for the Windows 11 upgrade, from making sure your device can run Windows 11 to backing up your files and installing Windows 11.

Open Device Manager. By pressing submit, your feedback will be used to improve Microsoft products and services.

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

Internet Explorer 11 support ended on June 15, 2022. If any site you visit needs Internet Explorer 11, you can open it with Internet Explorer mode in Microsoft Edge.

Summary. Windows 10, versions 2004, 20H2, 21H1, and 21H2 share a common core operating system with an identical set of system files. Therefore, the new features in Windows 10, version 21H2 are included in the latest monthly quality update for Windows 10, version 2004, 20H2, and 21H1, but are in an inactive and dormant state.

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2