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Microsoft previously introduced Hotpatching updates for Windows 11 Enterprise users—a mechanism that allows critical security patches to take effect immediately without requiring a system reboot. This feature significantly reduces downtime for enterprises caused by traditional update installations.
Hotpatching enables background installation of security updates without interrupting device operation, thereby maintaining security while minimizing unnecessary disruptions. For enterprise environments, this represents a substantial advancement in operational continuity. However, this convenience is not without cost.
At present, the seamless, reboot-free Hotpatch experience is available exclusively to organizations subscribed to Microsoft Enterprise E3/E5/F3, Microsoft Education A3/A5, or Microsoft Windows 365 Enterprise. Only businesses or academic institutions enrolled in these plans are eligible to deploy Hotpatch updates.
That said, Microsoft acknowledges that complete elimination of reboots is unattainable. Specifically, updates released in January, April, July, and October—designated as baseline months—still require a system restart. Updates released in all other months can be applied without rebooting the system.
In a blog post published this week, Microsoft announced that Windows 11 24H2 Enterprise Edition now officially supports Hotpatching. Currently, the feature is available for x86-based devices, with support for Arm64 architecture slated for release in the near future.
Enterprise IT administrators can manage and control the rollout using Microsoft Intune. To do so, they must create a Windows quality update policy specifically tailored for Hotpatching. It’s important to note that the KB identifiers and resulting build numbers for Hotpatch updates differ from those of standard updates.
Microsoft recommends administrators navigate to the Microsoft Intune admin center, then go to Devices > Windows Update, and create a new Windows quality update policy, setting the policy to “Allow” to enable Hotpatching. Once enabled, subsequent updates will become significantly more streamlined and less intrusive.
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