If the computer will not boot into Safe Mode, skip to the "Reinstall Windows" section. Launch your anti-virus software and run a full scan. Clean any traces found and reboot the machine into Safe ...

You can rescue or recover data & files from a dead Windows 11/10 computer that will not boot, by following the procedure laid down in this guide.

Microsoft says that a known issue will block Windows 10 from booting after trying to restore the system to a restore point created before installing a Windows 10 update.