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Knowledge Base

Microsoft Knowledge Base articles — security updates, cumulative updates, troubleshooting guides, and official documentation.

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Latest KB Articles

Professional server room showing Exchange Server infrastructure and network equipment
KB5074994Microsoft Exchange Server

KB5074994 — Security Update for Microsoft Exchange Server 2019 CU14

Mar 119 min
Windows server infrastructure displaying security update installation progress in data center environment
KB5078752Windows Update

KB5078752 — March 2026 Security Update for Windows 10 Version 1809 and Windows Server 2019

Mar 1112 min
Server room with Windows servers displaying security update installation progress
KB5078766Windows Server

KB5078766 — March 2026 Security Update for Windows Server 2022

Mar 1112 min
Enterprise server room with Windows Server 2022 systems and LED status indicators
KB5078737Windows Server

KB5078737 — March 2026 Security Hotpatch for Windows Server 2022

Mar 1112 min
Windows 11 laptop displaying Windows Update security installation screen
KB5079420Windows Update

KB5079420 — March 2026 Hotpatch Security Update for Windows 11

Mar 119 min
Windows laptop displaying system update installation screen
KB5079466Windows Update

KB5079466 — March 2026 Cumulative Update for Windows 11 Version 26H1

Mar 1112 min
Windows Server data center showing system update installation on management console
KB5078734Windows Server

KB5078734 — March 2026 Security Update for Windows Server 2022 23H2

Mar 1112 min
Server rack displaying Windows update installation screens in data center environment
KB5078938Windows Update

KB5078938 — March 2026 Security Update for Windows 10 Version 1607 and Windows Server 2016

Mar 1112 min
Server room displaying Windows Server 2012 R2 update installation screens
KB5078774Windows Server

KB5078774 — March 2026 Monthly Rollup for Windows Server 2012 R2

Mar 117 min
Modern server room showing Windows Server systems during security update installation
KB5078736Windows Server

KB5078736 — March 2026 Security Hotpatch for Windows Server 2025

Mar 1112 min
Server room with SharePoint administration interfaces displayed on multiple monitors
KB5002850Microsoft SharePoint

KB5002850 — Security Update for SharePoint Server 2016

Mar 1112 min
Server room displaying SharePoint security update installation on monitoring screens
KB5002845Microsoft SharePoint

KB5002845 — Security Update for SharePoint Server 2019

Mar 119 min
Windows Server rack in data center showing system status indicators and network connections
KB5078775Windows Server

KB5078775 — March 2026 Monthly Rollup for Windows Server 2012

Mar 1112 min
Enterprise server room showing rack-mounted servers with status indicators in a modern data center
KB5002846Microsoft Office

KB5002846 — Security Update for Office Online Server

Mar 1112 min
Office laptop displaying Microsoft Excel 2016 with security update notification
KB5002849Microsoft Office

KB5002849 — Security Update for Microsoft Excel 2016

Mar 1112 min
Data center server infrastructure displaying SQL Server security update installation
KB5077468SQL Server

KB5077468 — Security Update for SQL Server 2025 GDR

Mar 1112 min
Modern server room with SQL Server database systems and server racks
KB5077466SQL Server

KB5077466 — Security Update for SQL Server 2025 CU2

Mar 1112 min
Enterprise server room displaying SharePoint security update monitoring screens
KB5002843Microsoft Office

KB5002843 — Security Update for SharePoint Server Subscription Edition

Mar 1112 min
Developer workstation displaying .NET security update installation and code review
KB5081276.NET Framework

KB5081276 — Security Update for .NET 10.0

Mar 1112 min
Data center server room with SQL Server database systems and server racks
KB5077470SQL Server

KB5077470 — Security Update for SQL Server 2019 GDR

Mar 1112 min