Learn how to manage background activity for apps to help save battery power in Windows.

Learn how to extend your PC's battery life using battery saver and other power-saving tips for Windows.

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

了解如何使用产品密钥或数字许可证激活 Windows、检查激活状态，以及链接Microsoft 帐户。

An overview of location permissions and your privacy in the Microsoft Edge web browser.

If either of the categories above apply to you, use the following procedures to update your browser: Update once. In the browser, go to Settings and more > Help and feedback > About Microsoft Edge (edge://settings/help).. If the About page shows Microsoft Edge is up to date., you don't need to do anything.

Find out the steps you can take if you receive a message telling you a driver can't load on your device.

Learn how to create a OneDrive backup on your PC. Set up OneDrive PC folder backup to access, manage, stop, or fix problems with PC folder backup.

Make the everyday easier with Windows 11. When there's a lot to do, Windows 11 helps you get it done. With intuitive navigation and new multitasking tools, it brings you the performance you want and the security you need.

Find out how to set up and manage your security info and verification codes for your Microsoft account, and troubleshoot common issues.