Go to Settings > System > Troubleshoot > Other troubleshooters .
If your computer won't boot, the Startup Repair tool (found in the Windows Recovery Environment) scans for missing or damaged system files and tries to fix them automatically. 3. Top Third-Party "Quick Fix" Utilities download quick fix for windows
For more complex system corruption or update failures, Microsoft provides advanced standalone utilities: Go to Settings > System > Troubleshoot >