Microsoft Windows 11 KB5061258 Hotpatch Update: Enhance Security & Minimize Downtime

Microsoft has released an out-of-band Hotpatch update, KB5061258, for Windows 11 Enterprise version 24H2, bringing the OS build to 26100.3983. This update is part of Microsoft's ongoing effort to enhance system security and stability without necessitating system reboots, thereby minimizing downtime for users.
Understanding Hotpatching
Hotpatching is a technology that allows Windows to apply security updates to the operating system without requiring a restart. By patching the in-memory code of running processes, Hotpatching ensures that updates take effect immediately, enhancing security while maintaining system uptime. This approach is particularly beneficial for enterprise environments where system availability is critical.
Key Features of KB5061258
The KB5061258 update includes several important improvements:

• Security Enhancements: The update addresses various security vulnerabilities, ensuring that systems are protected against potential threats.
• Performance Improvements: Users may notice enhanced system performance and responsiveness following the update.
• Bug Fixes: The update resolves known issues from previous builds, contributing to overall system stability.

Prerequisites for Installation
To successfully apply the KB5061258 Hotpatch update, systems must meet the following criteria:

• Operating System Version: Devices must be running Windows 11 Enterprise version 24H2.
• Virtualization-Based Security (VBS): VBS must be enabled to ensure the secure installation of Hotpatch updates.
• Baseline Update: Devices should have the latest baseline update installed to qualify for Hotpatch updates.

For ARM64 devices, additional steps are required:

• Disable Compiled Hybrid Portable Executable (CHPE) Usage: Set the following registry key to disable CHPE:

  Path: HKLM\SYSTEM\CurrentControlSet\Control\Session Manager\Memory Management
  DWORD Key value: HotPatchRestrictions=1

After setting this key, a system restart is necessary. This configuration ensures compatibility with Hotpatch updates on ARM64 devices.
Installation Process
The KB5061258 update is available through Windows Update and will be downloaded and installed automatically on eligible devices. Users can also manually check for updates by navigating to Settings > Windows Update and selecting "Check for updates."
Benefits of Hotpatching
The introduction of Hotpatching offers several advantages:

• Reduced Downtime: By eliminating the need for system reboots, Hotpatching minimizes disruptions to user productivity.
• Enhanced Security: Immediate application of security updates helps protect systems against emerging threats.
• Improved Compliance: Organizations can maintain compliance with security policies more efficiently, as updates are applied promptly without interrupting operations.

Conclusion
The release of the KB5061258 Hotpatch update underscores Microsoft's commitment to providing secure and efficient update mechanisms for enterprise users. By leveraging Hotpatching technology, organizations can ensure their systems remain protected and operational with minimal disruption.
For more detailed information on this update, please refer to the official Microsoft Support page:
Note: Always ensure that your system meets the necessary prerequisites before applying updates to avoid potential issues.

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Source: Microsoft Support https://support.microsoft.com/en-us/topic/may-16-2025-hotpatch-kb5061258-os-build-26100-3983-out-of-band-6826d54b-8acd-4bc1-b8bf-c839ca8e77a0