Use the System File Checker tool to repair missing or corrupted system files. When critical Windows system files are missing or corrupted, some Windows features may stop working correctly or Windows may stop responding altogether.

Learn how to optimize system performance by managing startup applications in Windows.

First, you'll need to download the troubleshooter. Download troubleshooter. If you see the File Download box when you start downloading, select Run or Open. The troubleshooter provides steps for you to follow. If a program isn't listed in the uninstall options, you'll be asked for that program's product code.

You can repair some apps and programs if they're not running correctly. Note that you won't see repair, change, or modify options for all apps and programs. Repair options from the Settings page. Select Start > Settings > Apps > Installed apps. Select the More icon next to the app you want to fix.

Get Help has troubleshooters, or diagnostic tests, that can check your system configuration for anything that might be causing issues using your devices. View troubleshooter results. After you run any troubleshooter, Get Help provides details on any findings and suggestions for possible remedies.

Drivers updated through Device Manager can be done either automatically or manually. If needed, drivers can also be reinstalled through Device Manager. To update or reinstall a driver through Device Manager in Windows, select the desired task from the following list:

In this article, we will help you find your error code and suggest what you might try to correct the error. Follow the recommended resolutions for that error code. You may also click the specific error code to get more detail information. Note: This article doesn't contain all error codes generated by Device Manager.

To help diagnose and resolve many of these issues, you can use the Microsoft PC Manager app, which provides tools to clean up storage, manage startup apps, and optimize system performance. Download PC Manager app. This article lists several solutions that may help improve your PC’s performance.

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

Startup Repair is a Windows recovery tool that can fix certain system problems that might prevent Windows from starting. It scans your computer for the problem and then tries to fix it so your computer can start correctly.