Find help and how-to articles for Windows operating systems. Get support for Windows and learn about installation, updates, privacy, security and more.

After you create a homegroup, other PCs running Windows 7, Windows 8.1, Windows RT 8.1, or Windows 7 on your network can join it. Add your other PCs to the homegroup

Find out how to submit a case review and learn more about your Xbox enforcements.

Controller serial numbers are 14 characters long and don’t include dashes. Your controller serial number may not be recognized if you’ve never connected your controller, or if you connected for the first time within the last 48 hours.; If you have the Xbox Elite Wireless Controller Series 2, the 14-character serial number is in the lower center on the back of the controller.

This article describes an update for Universal C Runtime (CRT) in Windows. Before you install this update, check out the prerequisites section.. About this update. The Windows 10 Universal CRT is a Windows operating system component that enables CRT functionality on the Windows operating system.

若要更改捕获设置，请按“开始”按钮 ，然后依次选择“设置”>“游戏”>“捕获”。 以下部分介绍您可以调整的捕获设置。

Learn how to get your Xbox device serviced. Important Send in your device as soon as possible. If you don’t ship your device within 30 days of your request, your service order will be canceled, and the shipping label will no longer be valid.

下载和安装. 通常 Skype for Business 是随 Microsoft 365 一起安装的。 如果已安装 Microsoft 365，但未安装 Skype for Business 且需要安装它，请参阅：

Surface devices get updates through Windows Update. Find out what's included in each update and how to manually update your Surface. Select your device from the following list to see its update history.

IMPORTANT This update is not needed and will not be offered if your Windows Recovery Environment (WinRE) meets any of the following conditions: If the WinRE recovery partition does not have sufficient free space.