How can I modify the registry to fix Error 709 in Windows 11?

Open Registry Editor (regedit.exe) as an administrator. Navigate to 'HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Print'. Create a new DWORD (32-bit) Value named 'RpcAuthnLevelPrivacyEnabled' and set its value to '0'. Restart the Print Spooler service after making this change. This disables a specific authentication level requirement and can sometimes resolve the error. Be cautious when modifying the registry as incorrect changes can cause system instability.