Learn how to use antivirus protection in Windows Security to protect your Windows PC against malware, viruses, and other threats.

Updates to the default screen and sleep settings now help you use energy more efficiently and extend battery life. You can find efficiency settings in Windows 11 at Settings > System > Power & battery.. For a guided walkthrough of how each of the power and battery settings can improve your device's performance, click the button to open the Get Help app:

Learn how to troubleshoot problems installing or running games from the Xbox app for PC.

使用 Windows 设置应用更改桌面背景和颜色。

在浏览 Web 时，Microsoft Edge 可以轻松保存密码。 在桌面或移动设备上的 Edge 浏览器中输入新密码时，Microsoft Edge 会询问你是否要记住用户名和密码。

Learn how to download Microsoft Support and Recovery Assistant to help fix problems with Microsoft 365, Office, or Outlook.

Learn how to reinstall Windows on your PC and how activation works after it's installed.

Starting your Surface from a USB drive can be useful if you want to change firmware settings or Windows startup settings. Booting from a USB device doesn’t refresh or reset your Surface.

Get more out of your email with Outlook.com. We've streamlined search to make it easier than ever to find what you're looking for. New features like Files and attachment previews let you see your pictures and files without leaving your inbox.

Learn more about how to print web pages and documents in Microsoft Edge.