Microsoft has introduced a hotpatch update system for Windows 11 Enterprise builds, specifically for version 24H2, which allows updates to be applied without requiring a system restart. This feature is beneficial for corporate environments, as it helps maintain productivity and reduces CPU usage during updates. While quarterly updates will still necessitate a reboot, the hotpatching system represents a shift from the previous monthly reboot requirements.
To enable hotpatching, organizations must meet specific requirements: a subscription to Windows 365 Enterprise or Windows 11 Enterprise (E3, E5, or F3), a client running Windows 11 Enterprise 24H2 (build 26100.2033 or higher), activation of Visualization-based Security (VBS), and an AMD or Intel x64 processor. For Arm64 devices, the hotpatch system is in public preview and requires a registry key modification.
Hotpatch updates will follow the standard update schedule applicable to both Windows 10 and Windows 11 23H2 devices, with each release assigned a distinct KB number. This feature is only available for Windows 11 Enterprise clients and does not extend to Windows 11 Home or Pro machines.