If some Windows functions aren't working or Windows crashes, use the System File Checker to scan Windows and restore your files. Though the steps below might look complicated at first glance, just follow them in order, step-by-step, and we’ll try to get you back on track.

Download. What it fixes. Checks the following Windows security features and enables them if needed. Phishing Filter or Smartscreen Filter. User Account Control (UAC) Data Execution Prevention (DEP) Windows Firewall. Antivirus protection status and updates. Runs on. Windows 7. Windows 8.1. Windows 10. See also. Stay protected with Windows Security.

Select Start > Settings > Update & Security > Troubleshoot > Additional troubleshooters , or select the Find troubleshooters shortcut at the end of this topic, and then select Additional troubleshooters. Select the type of troubleshooting you want to do, then select Run the troubleshooter.

To open File Explorer in Windows 11, select File Explorer on the taskbar or press the Windows logo key + E on your keyboard. Here are some things to try if File Explorer won't open. Check for updates. Restart your device. Reset your PC.

If you are having issues installing or updating Gaming Services on your PC, or if you are noticing that the Xbox app for PC is launching with missing content, you may want to download and run the Gaming Services Repair Tool for PC.

Select Programs > Programs and Features. Right-click the program you want to fix and select Repair, or if that’s not available, select Change. Then follow the directions on the screen. For more tips, see Repair an Office application. You can also remove apps or programs. Repair programs in Control Panel.

Select Update Driver. If Windows doesn't find a new driver, you can try looking for one on the device manufacturer's website and follow their instructions. Reinstall the device driver. In the search box on the taskbar, enter device manager, then select Device Manager.

In the search box on the taskbar, type disk cleanup, and select Disk Cleanup from the list of results. Select the drive you want to clean up, and then select OK. Under Files to delete, select the file types to get rid of. To get a description of the file type, select it. Select OK.

This troubleshooter addresses devices which are not scanning for updates for certain internal reasons. How does the troubleshooter mitigate the problem? The troubleshooter resets the update scanning process which should prompt the device to start a new scan.

Windows includes a tool called Microsoft System Information (Msinfo32.exe). This tool gathers information about your computer and displays a comprehensive view of your hardware, system components, and software environment, which you can use to diagnose computer issues.