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

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 use the Activation troubleshooter to resolve common activation issues in Windows.

Learn how to use a health report in Windows Security to manage your device performance and keep your device secure.

If you are having trouble with your microphone features, the following information can help you troubleshoot and resolve issues.

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

See how to arrange all your open windows using the mouse, keyboard, or the Snap Assist feature in Windows.

Learn how to use Microsoft Edge for mobile devices, sync your browser data, and get answers to common questions.

Manually download a language for Cortana speech. Go back to Settings > Time & language > Language, select your new language, and then use the up-arrow button to move it to the top of the list and make it the default.

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