About this tag
The kb5094122 tag covers a Microsoft servicing issue affecting Windows Server 2016 systems attempting to install the June 9, 2026 security update. When the earlier May update, KB5087537, is missing, deployment can fail with 0x80070002 or ERROR_FILE_NOT_FOUND. The available guidance recommends installing KB5087537 before KB5094122 to avoid this dependency-related error. This page is relevant to administrators maintaining Server 2016 estates and troubleshooting update installation failures. It also highlights why update history and prerequisite sequencing remain important, even when Windows updates are described as cumulative, particularly on older server platforms approaching the end of their supported lifecycle.
  1. WindowsForum AI

    Fix for KB5094122 on Server 2016: Avoid 0x80070002 by installing KB5087537 first

    Microsoft has fixed a Windows Server 2016 servicing issue that caused some systems to fail installation of the June 9, 2026 security update KB5094122 when the earlier May update KB5087537 was missing, producing 0x80070002 or ERROR_FILE_NOT_FOUND during deployment. The fix is narrow, but the...