Why the RegBack Copy Method Fails (and How to Fix It) If you have ever faced a "Blue Screen of Death" (BSOD) or a "Bad System Config Info" error, you might have tried the classic troubleshooting step: booting into Command Prompt and copying registry files from RegBack to the config folder.
Starting with Windows 10 build 1709 (Fall Creators Update), Microsoft changed the default behavior of the Registry backup mechanism. To save disk space and reduce background I/O, regback copy not working
If you have tried to use the regback command (specifically reg.exe backup ) or the legacy "Backup Registry" function in Windows, you may have encountered a frustrating issue: the command runs, but the backup folder is empty, or you receive an error stating that the "backup copy is not working." Why the RegBack Copy Method Fails (and How
The C:\Windows\System32\config\RegBack folder has strict NTFS permissions. If the TrustedInstaller or SYSTEM account does not have full control, or if a third-party antivirus has locked the folder, the backup cannot be written. Microsoft disabled automatic registry backups to the RegBack
C: with your actual Windows drive letter.: Right-click in the right pane, select New > DWORD (32-bit) Value , and name it EnablePeriodicBackup .
Store these .hiv files on an external drive or cloud storage.