Run the System File Checker by targeting your offline Windows drive (replace D: with your actual Windows drive): sfc /scannow /offbootdir=D:\ /offwindir=D:\Windows Use code with caution. Once finished, run the Deployment Image Servicing tool: dism /image:D:\ /cleanup-image /restorehealth Use code with caution. Step 3: How to Re-Enable Automatic Registry Backups

Set the Base to or Decimal (both work for the value 1). Click OK and restart your computer.

When you get "Access Denied" errors, you need to take ownership of the relevant files from within the Recovery Environment.