Learn about Windows 11 minimum system requirements and how to assess your upgrade eligibility.

Learn how to change the refresh rate for your display in Windows to determine how smoothly motion appears on your screen.

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

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

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

Learn why it's important to have a backup, and how Windows Backup can help you keep your files and settings safe.

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:

There are different ways to remove apps and programs, so if you can't find the one you're looking for, you can try another location. Note that some apps and programs are built into Windows and can't be uninstalled.

Install Office 2007. Insert your Office 2007 CD into the drive. If the setup wizard doesn’t start automatically, navigate to the CD drive and click SETUP.EXE.

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