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

Learn how to access Windows device security settings in Windows Security to help protect your device from malicious software.

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:

Windows 10 and 11 contain a large set of emojis. To insert one: Put your cursor where you want the emoji.

Learn how to troubleshoot and fix problems setting up your email in Outlook.

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

Follow these steps to temporarily turn off Defender antivirus protection in Windows Security. Keep in mind that if you do, your device may be vulnerable to threats.

Discover the latest features in Office 2021, including new ways to create content, manage data, and communicate effectively.

Use the Windows Quick Assist app to get help with a computer problem from family or friends or help them out. Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it).