This solution requires you to modify the RpcAuthnLevelPrivacyEnabled registry key value. The Printer Remote Procedure Call (RPC) binding handles authentication for the remote Winspool interface. PC users can disable or enable Enforcement mode on the server-side to increase the authentication level.
Since this is a registry operation, it is recommended that you back up the registry or create a system restore point as necessary precautionary measures. Once done, you can proceed as follows:
- Press Windows key + R to invoke the Run dialog.
- In the Run dialog box, type regedit and hit Enter to open Registry Editor.
- Navigate or jump to the registry key path below:
HKEY_LOCAL_MACHINE\System\CurrentControlSet\Control\Print
- At the location, on the right pane, double-click the RpcAuthnLevelPrivacyEnabled entry to edit its properties.
If the key is not present, right-click on the blank space on the right pane and then select New > DWORD (32-bit) Value to create the registry key and then rename the key as RpcAuthnLevelPrivacyEnabled and hit Enter.
- Double-click on the new entry to edit its properties.
- Input 0 in the Value data field.
- Click OK or hit Enter to save the change.
- Exit Registry Editor
- Restart your PC.
