Microsoft has begun rolling out a hot patch update for security enhancements in Windows 11 Enterprise 24H2 and Microsoft 365 Preview Builds. This update allows users to download and install security patches via Windows Updates without needing to reboot their devices. Hotpatch updates provide a complete set of OS security patches but do not include additional features. They enable immediate activation of patches upon installation, improving security protection speed. However, hotpatching is limited to security patches, and Cumulative Updates will still require a system restart. Hotpatching does not apply to non-security updates for Windows Server 2022 and 2025. Windows 11 Enterprise editions are part of the Windows Enterprise subscription, which requires a Windows 11 Pro license for full feature access. There is speculation about hotpatching for Windows Home and Pro editions, but it is particularly beneficial for complex deployments in business environments.