TheWindowsClub covers authentic Windows 11, Windows 10 tips, tutorials, how to, features, freeware. Created by Anand Khanse, MVP. If you see Event ID 1795, The system firmware returned an error when attempting to update a Secure Boot variable in the Event Logs or your Windows Event Manager, this post will explain what it means and how to resolve it. Event ID 1795 is caused when Windows fails to update the Secure Boot Variable called DBX Revocation list, also known as Secure Boot Forbidden Si