Windows 11 · 26H2 · Release · Security update (Patch Tuesday)
Windows 11, version 26H2 (26300.9974)
- Release
- KB5132061 — Microsoft's article, opens in a new tab
- amd64
- arm64
Windows 11 26H2: Current annual release; availability depends on device eligibility and rollout
Microsoft release information · Verified Nov 10, 2026
AI summary
Windows 11, version 26H2 (build 26300.9974) is identified as a Release Preview Insider build. I couldn’t verify Microsoft notes for this exact build, so I can’t confirm specific changes. (learn.microsoft.com)
Generated from the package's release notes and forum coverage. Verify against Microsoft's release-health page before acting on it.
Microsoft's known issues — KB5132061
Microsoft lists no known issues for this update (KB5132061).
Known issues — reported on the forum
No problems reported on the forum for this build yet. Threads that name 26300.9974 or KB5132061 and describe a fault appear here automatically.
In the news
- Coverage CVE-2026-105582: Windows DWM Core Library Elevation of Privilege Vulnerability
- Coverage Windows 11 KB5132061: Cloud Rebuild, File Explorer Changes and 24H2 Eligibility
- Fix Windows 11 November 2026 Patch Tuesday: PowerShell Signing Changes and NTLM Hardening
- Coverage Windows 11 KB5127936: Customizable Right-Click Menu and USB-Free Cloud Rebuild
- Coverage Windows 11 26H2 Beta Rebuilds Search with Quick Settings Actions
- Fix Windows 11 26H2 Settings Backup: Default-On Policy, ESR Management and Restore Summary
- Coverage Windows 11 26H2 Beta Build 26320.9876 Adds New Search and Windows Hello Low-Light Sign-In
- Fix Windows 11 26H2 Beta Build 26320.9876: New Search Actions and Windows Hello Fix
Discussed on the forum
No member thread names 26300.9974 yet.