Managing Microsoft Windows Production PCA Certificate Expiration Before the October 2026 Deadline

The Microsoft Windows Production PCA 2011 certificate is set to expire on October 19, 2026, which may prevent unupdated devices from receiving future Secure Boot security protections. Because standard IT monitoring tools often lack the visibility to identify which machines still rely on the expiring certificate, administrators must proactively assess and update vulnerable hardware, such as older, air-gapped, or virtual machines.