October 14, 2025—KB5066877 (Security-only update)

October 14, 2025—KB5066877 Security-only update Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and non-managed business devices for the...

KB5071812: Servicing stack update for Windows Server 2008 SP2: November 11, 2025

KB5071812: Servicing stack update for Windows Server 2008 SP2: November 11, 2025 Windows Secure Boot certificate expirationImportant: Secure Boot certificates used by most Windows devices are set to expire starting in June 2026. Microsoft has been updating these certificates on consumer and...