Learn how to troubleshoot Windows activation errors. Browse common activation errors and learn what you can do to fix them.

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

Learn how to get ready for the Windows 11 upgrade, from making sure your device can run Windows 11 to backing up your files and installing Windows 11.

We'll describe three connection types for keyboards and mice. Follow the description that applies to your mouse or keyboard’s connection type.

Learn how to run System File Checker in Windows to check if your computer has problems with files.

Microsoft Support offers assistance for Microsoft products, including how-to articles, videos, and training for various software and devices.

Find out how to connect your Xbox Wireless Controller to a Windows device.

Learn how to adjust the time and time zone settings on your Windows device with this Microsoft Support guide.

Learn how to unlock your Microsoft account and resolve 'account has been locked' error message.