xcopy D:\Windows\System32\config\RegBack\* D:\Windows\System32\config\ Use code with caution.
When you attempt a traditional "copy and paste" of the RegBack folder while the operating system is running, Windows cannot access the locked, in-use Registry files. This results in the dreaded error: "Cannot copy file: It is being used by another person or program."
This process should successfully replace the active registry with your backup, bypassing all "Access Denied" errors. For more context on offline registry replacement, see the Microsoft Q&A discussion. regback copy not working
Press Win + R , type regedit , and press Enter.
Turn your PC on and off three times consecutively using the physical power button during boot. This triggers the screen. Click Advanced options . 2. Run System Restore Select Troubleshoot > Advanced options > System Restore . Choose your administrator account and enter the password. For more context on offline registry replacement, see
Microsoft officially recommends using to recover a corrupt registry instead of relying on the legacy RegBack method. How to Fix "RegBack Copy Not Working"
Check the box Replace owner on subcontainers and objects . This triggers the screen
Microsoft changed this behavior to reduce the overall disk footprint of Windows. Instead of the RegBack folder, they recommend using System Restore points to recover a corrupted registry Microsoft Learn How to re-enable RegBack
Microsoft changed the default behavior to save disk space. The system now uses a feature called "Volume Shadow Copy" (VSS) for Registry backups. Consequently, the RegBack folder appears empty or contains 0KB placeholder files. The files are not stored as standard files on disk; they exist only as differential snapshots.