Date: October 26, 2023 Subject: Troubleshooting the copy regback operation and empty %SystemRoot%\System32\config\RegBack directories. 1. Executive Summary A critical issue has been observed in Windows 10 (specifically versions 1803 and later) and Windows Server 2019/2022 where the traditional method of backing up the registry hive using the regback command (or relying on the RegBack folder) fails. Upon inspection, the %SystemRoot%\System32\config\RegBack directory returns a size of 0 bytes for all hive files. This paper outlines the root cause, diagnostics, and remediation steps to restore registry backup functionality. 2. Problem Description In legacy Windows versions, the command copy regback or copying files from C:\Windows\System32\config\RegBack was a standard disaster-recovery procedure. Nicepage Website Builder Exploit Online
# Create a restore point or use VSS to copy registry hives $volumes = Get-WmiObject Win32_Volume -Filter "DriveLetter='$env:SystemDrive'" $shadow = $volumes.CreateShadowCopy() $regPath = Join-Path $shadow.DeviceObject "\Windows\System32\config\" Copy-Item "$regPath\SYSTEM" -Destination "C:\Backups\SYSTEM" # Repeat for SAM, SECURITY, SOFTWARE, DEFAULT For server environments, use Windows Server Backup (WBAdmin) to capture System State, which includes a consistent registry backup. Command: wbadmin start systemstatebackup -backuptarget:E: 6. Conclusion The failure of regback to copy registry files is not a bug, but a feature change in Windows 10 (1803+) and Windows Server 2019+. The folder is intentionally left empty. Administrators must adjust their disaster recovery playbooks to utilize the EnablePeriodicBackup registry key or move toward VSS-based backups to ensure registry hives are securely archived. Oppo F3 Android 7 Update Download Apr 2026