# Windows 11 26200.9168 — August 11, 2026—KB5121003 (OS Builds 26200.9168 and 26100.9168)

- Product: Windows 11 (https://whatsnew.fyi/product/windows-11)
- Vendor: Microsoft
- Date: 2026-08-11
- Version: 26200.9168
- Original notes: https://support.microsoft.com/en-US/servicing/os/windows-11/2026/08/kb5121003-windows-11-24h2-25h2-security-update
- Permalink: https://whatsnew.fyi/product/windows-11/releases/26200.9168

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