2021-03 Cumulative Update for Windows 10 Version 1607 for x86-based Systems (KB5000803)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...

2021-03 Cumulative Update for Windows Server 2016 for x64-based Systems (KB5000803)

A security issue has been identified in a Microsoft software product that could affect your system. You can help protect your system by installing this update from Microsoft. For a complete listing of the issues that are included in this update, see the associated Microsoft Knowledge Base article...

March 9, 2021—KB5000803 (OS Build 14393.4283) - EXPIRED

March 9, 2021—KB5000803 OS Build 14393.4283 - EXPIRED EXPIRATION NOTICE As of 9/12/2023, KB5000803 is no longer available from Windows Update, the Microsoft Update Catalog, or other release channels. We recommend that you update your devices to the latest security quality update. --- NEW 3/9/21...