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 locate and manage your app permissions on Windows devices. Some apps or games need specific permissions to work properly.

Quick Assist lets someone you trust take over your Windows 10 or Windows 11 PC and fix a problem from wherever they are.

Find out how to use Game Bar to capture game play, chat with friends, track achievements, and more.

Learn how to view, manage, and delete cookies in Microsoft Edge.

Windows Security is pre-installed on Windows 10 and ready for you to use at any time.

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。

Создание установочного носителя для установки или переустановки Windows 7, Windows 8.1 или Windows 10.

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

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