If you have a secondary user account on the PC or can boot into Safe Mode, you might be able to manually load and fix a corrupt registry hive using the Registry Editor. Boot into . Type regedit and press Enter . Click on HKEY_LOCAL_MACHINE . Go to File > Load Hive .
This is a incredibly frustrating situation, especially when you are already dealing with a computer that won't start.
After this change, Windows will begin creating full, usable registry backups in the RegBack folder again. regback copy not working
What triggered your search for a registry backup?
Once you get back into your system, you should re-enable the automatic RegBack feature. This ensures that the copy command will actually work the next time you face a system failure. Press , type regedit , and press Enter . If you have a secondary user account on
Starting with Windows 10, version 1803, the "RegBack" copy functionality is not "broken" but was intentionally disabled by Microsoft to reduce the operating system's overall disk footprint. When you check the \Windows\System32\config\RegBack folder, you will often find registry hive files that are 0 KB in size, meaning no actual backup exists. Why the Feature was Removed
The files inside C:\Windows\System32\config\RegBack are KB in size, or the folder is empty. Cause: A registry key named EnablePeriodicBackup is set to (disabled) by default. Click on HKEY_LOCAL_MACHINE
Alex wasn’t worried. Windows automatically backs up the registry to C:\Windows\System32\config\RegBack . He’d read that Windows 10 and Server 2016 keep a copy of the SAM, SYSTEM, SOFTWARE, SECURITY, and DEFAULT hives there. He just needed to copy them back.