Microsoft Windows 11 24H2 Update Version OS Builds 26200.7705 and 26100.7705

KB5074105 updates Windows 11 25H2 and 24H2 with quality improvements, new features, and fixes across Start, File Explorer, Windows Update, UAC, and accessibility. It also includes Secure Boot guidance and a servicing stack update (KB5074104).

• Adds DPAPI domain backup key management so administrators can set automatic key rotation, strengthening cryptographic security.
• Windows 11 24H2 Secure Boot update replaces the 2011-signed bootmgfw.efi with the 2023-signed version on devices with the Windows UEFI CA 2023 certificate.
• Addresses a UAC-related issue where the PC might stop responding when launching Windows Terminal elevated from a non-admin account.

• Fixes Start menu issues, including a cut-off shutdown warning and incorrect opening side in Arabic or Hebrew layouts.
• Fixes Windows Update getting stuck when joining the Windows Insider Program from Settings.
• Improves lock screen responsiveness and File Explorer responsiveness in network locations.
• Fixes Explorer.exe hanging at first sign-in when certain startup apps are configured, which could prevent the taskbar from appearing.
• Fixes Windows license migration failures during upgrade when the device cannot register for a digital license.
• Fixes desktop icons moving unexpectedly when opening or renaming files.
• Fixes reversed keyboard character repeat delay labels in Settings.
• Fixes Windows Sandbox startup hangs with error 0x800705b4.
• Fixes black screen issues in isolated multiuser environments after upgrade.
• Fixes folder renaming in File Explorer when desktop.ini and LocalizedResourceName are used.
• Fixes a dxgmms2.sys-related system error that could lead to KERNEL_SECURITY_CHECK_FAILURE.
• Fixes Narrator not starting during Windows installation from an ISO.
• Fixes startup hangs when Windows Boot Manager debugging is enabled.
• Fixes iSCSI boot failures that could cause Inaccessible Boot Device.
• Fixes the Start menu mobile device side panel hide setting not applying for some users.
• Fixes the missing Password icon in Sign-in options after KB5064081 or later.

• Windows Hello Enhanced Sign-in Security now supports peripheral fingerprint sensors.
• Settings home page can show a Device card with key PC specifications and usage details.
• Smart App Control can now be turned on or off without a clean install.
• Cross-Device Resume expands to more Android apps and services, including Spotify, Microsoft 365 apps, and browser sessions.
• Windows MIDI Services adds improved MIDI 1.0 and MIDI 2.0 support with shared ports, custom port names, loopback, and app-to-app MIDI.
• Narrator now lets users control which details are announced and their order.
• Voice Access setup is streamlined with speech model download, microphone selection, and onboarding.
• Voice Typing adds a configurable wait time before acting on voice commands.
• Settings Agent now supports more languages on Copilot+ PCs.

• Secure Boot certificates used by most Windows devices are set to expire starting in June 2026; Microsoft recommends reviewing the guidance and updating certificates in advance.
• The Windows MIDI Services App SDK and Tools package is a separate download and is currently unsigned, which may trigger security warnings during download or installation.
• The Secure Boot update for Windows 11 24H2 can cause a Secure Boot violation if the DB is reset or Secure Boot is toggled; recovery media may be required in rare cases.
• This update is available as a gradual rollout and a normal rollout; feature availability may vary by device.
• If earlier updates are installed, only the new updates in this package are downloaded and installed.
• The servicing stack update is KB5074104.

Product Information

Vendor: Microsoft

Product: Windows 11

Version: OS Builds 26200.7705 and 26100.7705

Release date: Jan 29, 2026