Do not change permissions on the parent config folder—this can break system boot.
Windows no longer automatically backs up the system registry to the RegBack folder. regback copy not working
Right-click in the right pane, select New > DWORD (32-bit) Value , and name it EnablePeriodicBackup . Set Value: Double-click it and set the value data to 1 . Do not change permissions on the parent config
reg save HKLM\SAM C:\RegBackup\SAM.hiv reg save HKLM\SECURITY C:\RegBackup\SECURITY.hiv reg save HKLM\SOFTWARE C:\RegBackup\SOFTWARE.hiv reg save HKLM\SYSTEM C:\RegBackup\SYSTEM.hiv reg save HKLM\DEFAULT C:\RegBackup\DEFAULT.hiv reg save HKCU C:\RegBackup\USER.hiv Set Value: Double-click it and set the value data to 1
The regback folder (normally C:\Windows\System32\config\RegBack ) contains backups of registry hives (SAM, SECURITY, SOFTWARE, SYSTEM, DEFAULT). Users trying to copy these files (e.g., to restore a corrupted registry) find that the copies are zero bytes, corrupt, or produce “access denied” / “file in use” errors .