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Microsoft Security Baselines Blog
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Windows 11, version 26H2 security baseline

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Rick_Munck
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Sep 29, 2026

Microsoft is pleased to announce the security baseline package for Windows 11, version 26H2!

Update: The Windows 11, version 26H2 security baseline has been updated to reflect the general availability of Administrator protection. An updated v2 package is now available, and organizations shou...
Updated Oct 27, 2026
Version 3.0