Microsoft Releases Hotpatching for Windows 11 Updates

Microsoft ha comenzado a desplegar la esperada actualización de hotpatch para actualizaciones de seguridad en Windows 11 Enterprise 24H2 y Microsoft 365 Preview Builds. Una vez instalada, los usuarios podrán descargarse e instalar los parches de seguridad a través de Windows Updates, sin necesidad de reiniciar su dispositivo para que se activen. 🔄

Hotpatch updates are specific and provide a complete set of patches. security del sistema operativo. No se incluyen características adicionales», explica Microsoft. Son únicas porque tienen efecto inmediato tras la instalación sin que sea necesario reiniciar el dispositivo, lo que ayuda a garantizar una protección rápida y enfocada.» 🛡️

Las actualizaciones de hotpatch estaban disponibles en Windows Server 2022 Datacenter: Azure Edition desde febrero de 2022, y ahora también en Windows Server 2025. Se están demostrando más que una simple mejora de calidad de vida, ya que reducen el tiempo de inactividad del sistema por cada reinicio necesario para apply security patches.

Hotpatching update the code in memory with the update, thus avoiding the need to reboot the system. This method also has other advantages, as mentioned Microsoft:

• Fewer binaries mean that updates install faster and consume less disk resources and CPU.
• Less impact on workload with less need to reboot the machine.
• Better protection, as Hotpatch update packages are geared towards security updates Windows, which install faster without requiring a reboot.
• Reduces time exposed to risks of security and change windows, as well as facilitating patch orchestration with Azure Update Manager.

Hotpatching is incredibly useful for commercial workloads, since hotpatching patches are security are required regularly, some more urgently than others. Thus, users no longer need to plan an update for a critical patch and coordinate a reboot for complex servers and clusters that use these operating systems. Microsoft also uses hotpatching for its clusters, such as the red from Xbox. 🎮

We inform that Microsoft I was testing hotpatching internally a few months ago, with the goal of deploying it to 22H2 and Arm64-based devices, which will be delayed for a full year.

There are limitations to hotpatching, as it only works for patches of security. This means that Cumulative Updates, which are rolled out during the first month of each quarter, will require a restart. It is worth noting that for Windows For Windows Server 2022 and 2025, hotpatching does not include non-security updates for Windows, .NET updates, or non-Windows patches such as firmware, driver, and software updates. software, which will likely be the case with Windows 11 Enterprise and Windows 365 as well.

The editions of Windows 11 Enterprise forms parte de la suscripción a Windows Enterprise, que incluye planes Enterprise E3, Enterprise E5, y Microsoft 365 Enterprise. Aquellos que se han suscripto a este plan necesitarán una licencia de Windows 11 Pro. Windows 11 Enterprise incluye más características, como Azure Virtual Desktop, Credential Guard, Direct Access, Universal Print y otras. Las versiones Pro y Enterprise están diseñadas para usuarios empresariales pero con propósitos específicos. 💼

One might expect that the hotpatching It will inevitably arrive in the Home and Pro editions of Windows, although hotpatching is more beneficial on systems with more complex deployments. Restarting each system after an update is impractical in many situations, as it involves downtime. ⏳