Before you start
- Back up important files before any recovery step that can alter Windows.
- On encrypted devices, confirm you can access the BitLocker recovery key.
PC starts but something is wrong
Start with a troubleshooter. If available on your Windows 11 version, “Fix problems using Windows Update” can reinstall the current Windows version while keeping files, apps and settings. Then consider uninstalling a problematic update or System Restore.
Problem began immediately after a Windows update
Try Settings > Windows Update > Update history > Uninstall updates, or use WinRE > Troubleshoot > Advanced options > Uninstall Updates if Windows cannot start.
Windows will not start
Use WinRE. Try Startup Repair first for boot problems, then update removal/System Restore where appropriate. Reset this PC is more disruptive and should come later.
Reset vs reinstall
Reset this PC can keep personal files but removes apps/settings. A clean installation from USB is more destructive and can remove everything; use it only when the less destructive recovery paths are unsuitable.
Microsoft source
This guide is independently written and condensed from current Microsoft Support guidance. If your Windows build differs or the problem persists, use the official source for the full decision tree.
Open Microsoft Support ↗