NOTICE This article has been deprecated. Previously, this article discussed how to manually apply Secure Boot Forbidden Signature Database (DBX) updates to the operating system. This process is no longer necessary. DBX updates are now delivered through the monthly servicing updates. No further user action is necessary.
Microsoft guidance for applying Secure Boot DBX update (KB4575994)
Need more help?
Want more options?
Explore subscription benefits, browse training courses, learn how to secure your device, and more.
Communities help you ask and answer questions, give feedback, and hear from experts with rich knowledge.
