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.
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Session Manager\Configuration Manager Create a New Value Right-click on the Configuration Manager DWORD (32-bit) Value EnablePeriodicalBackup Set the Value : Double-click your new entry and change the Value data : Reboot your computer. Important Notes Manual Trigger regback copy not working