May 13, 2025 Hotpatch KB5058497 (OS Build 26100.3981) for Windows 11 Enterprise LTSC 2024
Hotpatch KB5058497 delivers miscellaneous security improvements to internal OS functionality for Windows 11 Enterprise LTSC 2024, releasing May 13, 2025 at OS build 26100.3981.
Summary
This is a hotpatch security update for Windows 11 Enterprise LTSC 2024, released on May 13, 2025, bringing the OS to build 26100.3981. It delivers miscellaneous security improvements to internal OS functionality and is available for both x64 and Arm64 devices. See Microsoft Support for the official page.
Improvements and fixes
- This update applies miscellaneous security improvements to internal OS functionality. Microsoft notes no additional issues are documented in this release.
- Devices that already have earlier updates installed will download and install only the new content contained in this package.
Known issues
Microsoft lists no known issues for this update at the time of writing.
How to get this update
Before installing, be aware that Microsoft bundles the latest servicing stack update (SSU) together with this hotpatch. The bundled SSU is KB5058523, version 26100.4060. If you are using Windows Update, the SSU installs automatically alongside this update. For more background, Microsoft's documentation on servicing stack updates and the SSU FAQ provide general guidance.
Install channels available:
- Windows Update / Microsoft Update - the update downloads and installs automatically.
- Microsoft Update Catalog - available as an alternative download option.
- Windows Server Update Services (WSUS) - available as an alternative deployment option.
File information:
- A file list for cumulative update KB5058497 is available for download from Microsoft.
- A file list for the servicing stack update KB5058523 (version 26100.4060) is also available for download.
Important: For Arm64 devices, hotpatch updates are still in public preview.
Frequently asked questions
What is a hotpatch update and how does it differ from a standard cumulative update?
A hotpatch update applies security fixes to running processes in memory without requiring a system restart at the time of installation. This differs from a standard cumulative update, which typically requires a reboot to complete. The goal is to reduce planned downtime while still keeping systems current with security improvements.
Does this update apply to all Windows 11 editions?
No. According to the page, KB5058497 applies specifically to Windows 11 Enterprise LTSC 2024. It supports both x64 and Arm64 architectures, though hotpatch support for Arm64 remains in public preview at the time of this release.
Is a servicing stack update required before installing KB5058497?
Microsoft bundles the latest SSU - KB5058523, version 26100.4060 - directly with this hotpatch. If you deploy via Windows Update, the SSU installs automatically. Admins using the Catalog or WSUS should review the file information provided on the support page to confirm SSU handling in their environment.
Where can admins track new updates and release health information?
Microsoft recommends following @WindowsUpdate for notifications when new content is published to the Windows Release health dashboard. For a broader view of Windows 11 version 24H2 update history, Microsoft maintains a dedicated update history page for that release.
