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

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

Learn how to turn on device encryption, or standard BitLocker encryption in Windows.

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

To import a text file, you can open the file or import the text file as an external data range. To export a text file, use the Save As command.

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:

Extensions, or add-ons, are simple tools that customize your browser experience and offer you more control. Here's how to add, turn off, and remove them in Microsoft Edge .

Contact Microsoft Support. What's new. Surface Pro; Surface Laptop; Surface Laptop Studio 2

Learn how to troubleshoot Windows Media Player errors. Explore resources for general help with Windows Media Player.

Learn about the recovery options in Windows. Find out how to reset your PC, go back to a previous version of Windows, or use media to reinstall Windows.