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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

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
Server room with Windows servers displaying security update installation progress
KB5078766Windows Server

KB5078766 — March 2026 Security Update for Windows Server 2022

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 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
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
Modern server room displaying Windows Server 2025 systems with status indicators
KB5075942Windows Server

KB5075942 — February 2026 Security Hotpatch for Windows Server 2025

Mar 1112 min
Professional server rack in data center with Windows Server management interface displayed on monitor
KB5075897Windows Server

KB5075897 — Security Update for Windows Server 2022 23H2

Mar 1112 min
Professional server rack displaying Windows Server security update installation in modern data center environment
KB5075906Windows Server

KB5075906 — February 2026 Security Update for Windows Server 2022

Mar 1112 min
Server room with Windows servers displaying update installation status on monitoring screens
KB5075943Windows Server

KB5075943 — February 2026 Security Hotpatch for Windows Server 2022

Mar 1112 min
Windows Server rack in data center showing system status and monitoring displays
KB5075971Windows Server

KB5075971 — February 2026 Monthly Rollup for Windows Server 2012

Mar 117 min
Server room with Windows servers displaying security update installation progress
KB5078740Windows Server

KB5078740 — March 2026 Security Update for Windows Server 2025

Mar 1112 min
Server room displaying Windows Server 2012 R2 update installation screens
KB5075970Windows Server

KB5075970 — February 2026 Monthly Rollup for Windows Server 2012 R2

Mar 117 min