Learn how to improve Windows PC performance if your device is running slowly.

Your Windows device may run slowly for several reasons, such as limited storage space, too many startup apps running in the background, outdated software, or hardware that no longer …

Learn how to use Manage and Optimize Drives to keep your disk and data drives defragmented and at top performance in Windows.

Learn how to recognize Internet connection problems and help improve your computer's online performance.

Oct 14, 2025 · Fix-it tools aren’t used in Windows 10. Instead, use a troubleshooter to help solve problems with your PC.

Oct 14, 2025 · With Startup Repair, you can fix common problems that prevent Windows from starting up. Learn how access Startup Repair.

Learn about things you can try to fix things if your Windows 10 PC is plugged in and charging slowly or discharging.

Try these solutions if your Surface seems to be running more slowly than it once did.

It will automatically run diagnostics and attempt to fix most of the problems. If you are using an older version of Windows or a mobile device, please skip to General troubleshooting steps.

A higher base score generally means that your computer will perform better and faster than a computer with a lower base score. See Windows Help and Support for more information. Make …