Microsoft Released Out-of-Band Updates for Windows Server on October 26 (KB5134137, KB5134140, KB5134123): Check Whether Your Server Needs the Trusted Root Payload, and Read the Official Exchange Known Issue Microsoft shipped out-of-band Windows Server updates with a fresh trusted root payload for disconnected servers. See how to check yours and what the Exchange known issue says. Oct 31, 2026 6 min read Windows Server