Note: Use these steps for Windows programs.If you're having problems with an app you got from Microsoft Store, go to Fix problems with apps from Microsoft Store.

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

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.

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.

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.

If you've received any reactions in the previous day or so, you'll get a digest email that summarizes the reactions you've received. You can unsubscribe from the digest email if you'd prefer not to receive it.

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Data Execution Prevention (DEP) is a technology built into Windows that helps protect you from malicious code launching from areas of memory that have been designated as for data only.

Unplug the network cable from the back of your console. Inspect the cable’s connector and the Xbox console’s socket to make sure that they are clean and free of debris.

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：