Microsoft Windows 11 24H2 Update Version OS Builds 26200.8116 and 26100.8116

KB5079391 updates Windows 11 25H2 and 24H2 with production-quality improvements, new AI and Settings features, and reliability fixes. Microsoft later stopped offering it to new devices because of an installation issue, which was addressed in KB5086672. Reference IDs: KB5074105, KB5079387.

• Smart App Control can now be turned on or off without a clean install, helping block untrusted or potentially harmful apps.
• Application Control for Business improves Application ID tagging accuracy and reliability.

• Fixes a Windows Update Standalone Installer issue in Windows 11 25H2 where WUSA could fail with ERROR_BAD_PATHNAME when installing .msu files from certain paths.
• Improves File Explorer reliability, including unblocking downloaded files for preview, voice typing while renaming, and sorting folder permission entries by Principal.
• Improves Settings reliability and performance, including opening Home and downloading required updates in Advanced settings.
• Improves display reliability, including high refresh rate reporting, USB4 monitor power behavior during sleep, auto-rotation after sleep, HDR handling, and WMI monitor size reporting.
• Improves safe mode taskbar loading reliability.
• Improves Voice Access number detection and writing in English.
• Improves Start menu layout application through Group Policy when desktopAppLink is present in JSON.
• Improves Remote Desktop PowerShell handling of DisableSeamlessLanguageBar.
• Improves short MIDI message handling when applications are initialized without long message buffers.
• Removes an extraneous error message that could appear when running sfc /scannow.
• Improves Windows Hello Fingerprint reliability for certain devices.
• Improves Windows RE stability on ARM64 devices running x64 apps.
• Improves Narrator Natural Voices experience and setup reliability.

• Narrator now provides rich image descriptions on Copilot+ PCs and works with Copilot on all Windows 11 devices.
• Microsoft 365 Family subscribers can upgrade to a different Microsoft 365 plan from Settings > Accounts.
• Settings > Accounts > Other users dialog boxes have a refreshed design with dark mode support.
• The Pen settings page adds a Same as Copilot key option for the pen tail button.
• The Settings About page and Settings Home device information card have been redesigned for clearer device details.
• Monitors can now report refresh rates higher than 1000 Hz.

• Installation of this update might fail with error 0x80073712.
• This update is no longer being offered to new devices due to an installation issue; KB5086672 contains the fix.

• Release phases include gradual rollout and normal rollout; feature availability may vary by device.
• Windows Secure Boot certificates used by most devices are set to expire starting in June 2026; Microsoft recommends reviewing the linked guidance in advance.
• Updated servicing stack package: KB5079387 (26100.8112).
• AI component versions updated to 1.2603.377.0 for Image Search, Content Extraction, Semantic Analysis, and Settings Model.
• If earlier updates are installed, only the new changes in this package are downloaded and installed.

Product Information

Vendor: Microsoft

Product: Windows 11

Product type: Software

Application category: Utilities

Platform: Windows

Variant: 24H2

Version: OS Builds 26200.8116 and 26100.8116

Vendor information published: Mar 26, 2026

Original release notes: View on vendor site

Published on updatealert.io: Jun 4, 2026

Description: Client operating system for modern desktop and enterprise environments.