When critical Windows system files are missing or corrupted, your operating system may begin to malfunction. Common symptoms include Windows features not working properly, system errors, or Windows becoming unresponsive or freezing.

The installation file is typically named Autorun.exe or Setup.exe, but this may vary. If you're not sure, check the Readme file in the folder for instructions about how to run the installation process.

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.

After October 14, 2025, Microsoft will no longer provide free software updates from Windows Update, technical assistance, or security fixes for Windows 10. Your PC will still work, but we recommend moving to Windows 11. Learn more. Note: Use these steps for Windows programs.

Windows 11 might shut down or restart unexpectedly when a serious problem occurs, causing you to briefly see an error message, such as “Your device ran into a problem and needs to restart.” Windows 11 will then restart automatically.

Use the Windows Update Troubleshooter to fix Windows 11 Update errors. Check third-party drivers and download any updates. You can find third-party drivers and installation instructions for any hardware you’ve added to your device on the manufacturer’s website. Unplug extra hardware.

Find out the steps you can take if you receive a message telling you a driver can't load on your device.

Windows provides several recovery tools to help you troubleshoot and restore your PC when issues occur, such as startup failures, update problems, or malware infections. If you're having problems with your Windows device, the following table can help you decide which recovery option to use: Frequently asked questions (FAQs)

Update process is stuck due to an incomplete update or connection issue. Warning: Microsoft only recommends trying the procedures in this section if you're comfortable working in the command line. These procedures require administrator permissions on your device.

Follow the steps in the section, How to start the Windows Installer service when system services are not loaded. Then try installing or uninstalling the app or update again. If the installation or uninstallation is successful, your issue is resolved.