Please do a Reset which will wipe everything and clean install Windows 10.
- Press Win+R, type systemreset and click OK.
- Click "Remove everything".
References:
How to Use “Reset this PC” to Clean Install Windows 10 or 11
How to: Perform a clean install using Reset this PC in Windows 10 - Microsoft Community
If you can't start Windows, you can create a USB setup disk to boot from it to clean install Windows 10. See: