If you suspect that your device may have malware you should have Microsoft Defender run a scan. Here's how to do that on Windows, Mac, or Android.

Learn how to recover files that have been lost, deleted, or accidentally changed.

Get an overview of SharePoint. Learn about sites, lists and libraries, permissions, content types and workflows. In addition, read about some of the social features in SharePoint.

Windows 10更新助手在您的设备上下载并安装功能更新。 功能更新，例如 Windows 10 版本 1909（又称作 Windows 10 2019 年 11 月更新）提供新功能，并帮助保持系统安全。 下载更新助手 后，你将自动获得这些更新。

Choose the apps that will run when you start your device. Go to Start > Settings > Apps > Startup. Open Startup settings. For any app in the list, select the toggle to set it to On. If you want to change the advanced settings for that app, select the arrow and make changes as desired. Note: If you see the icon next to the On / Off toggle for an ...

Use multiple desktops in Windows to organize projects, or quickly switch between desktops before a meeting.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

Learn how to earn Microsoft Rewards points when you browse the web with Microsoft Edge, search on Bing.com, and more.

了解如何使用 Windows 上的 Game Bar 来捕获游戏过程、与好友聊天和跟踪成就。

On the side panel, select People. Select All contact lists, then select Edit by either right-clicking the contact list or selecting it from the Ribbon. You'll have the option to rename the contact list, add additional contacts to the list, or add a Description to the list. When you are finished, select Save.