Microsoft's Hotpatching Preview for Windows 11 & Windows 365: Enhance Security Updates

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In an exciting development for Windows enthusiasts and enterprise users, Microsoft has announced that hotpatching is now in preview for Windows 365 and Windows 11 Enterprise 24H2 client devices. This innovative feature aims to streamline the update process, allowing users to install critical security updates with minimal disruption.

What is Hotpatching?​

Hotpatching is a method that enables Windows to apply security updates without requiring a system reboot. Traditionally, installing updates often necessitated restarting devices—a process that can be cumbersome, especially in enterprise environments where uptime is paramount. With hotpatching, Microsoft has developed a solution that modifies the in-memory code of running processes, allowing updates to take effect immediately while keeping the system operational.

How it Works​

Hotpatching operates by downloading security updates in the background and applying them seamlessly. This approach contrasts with the conventional update procedure, which involves a full restart after each update. According to Microsoft, such hotpatch updates will not include new features but will provide comprehensive security patches. Here's how the updated formula will work:
  • Quarterly Updates: Every January, April, July, and October, devices will receive a cumulative security update alongside a required reboot.
  • Monthly Hotpatch Updates: In the months between these quarters, security-only hotpatch updates will be rolled out, following a cycle that greatly reduces the number of required reboots from twelve to just four a year—making it a user-friendly and productivity-enhancing option.

Eligibility and Requirements​

Organizations wishing to leverage this new functionality will need to meet specific criteria:
  • A subscription to Microsoft Windows Enterprise E3 or E5 (such as Microsoft 365 A3/A5, F3), or a Windows 365 Enterprise subscription is essential.
  • Devices must be running Windows 11 Enterprise, version 24H2 (Build 26100.2033 or later).
  • Eligible users can also manage this feature through Microsoft Intune, which allows them to enable or disable hotpatch update deployments automatically.
Microsoft’s move to make hotpatching available follows its success on Windows Server 2022 Datacenter: Azure Edition, indicating a broader application of this technology across its platforms.

Implications for Users​

The introduction of hotpatching signifies a substantial leap forward in Microsoft’s strategy to enhance the user experience for both general users and IT administrators. With reduced reliance on reboots, organizations can maintain higher productivity levels. For general users, this could mean less downtime and smoother operation in their daily computing tasks.
Moreover, these improvements underscore a growing trend in the tech industry of providing seamless updates—aligning with user expectations for software to be less invasive in terms of time and resources.

Broader Context​

As part of the announcements made during the Ignite conference in Chicago, Microsoft not only highlighted hotpatching but also introduced its "Zero Day Quest" event, focusing on cloud and AI security prizes. Such initiatives emphasize the importance of cybersecurity in today’s digital landscape, as threats continue evolving.
Additionally, Microsoft revealed plans for further improvements, including new security features tailored for Windows 11 administrators and a "Quick Machine Recovery" feature aimed at resolving unbootable device issues remotely.
In conclusion, with the preview of hotpatching for Windows 11 24H2 and Windows 365, Microsoft is setting the stage for a significant transformation in how updates are managed. Users across the globe can look forward to a more seamless operating experience, allowing them to focus on what matters most—getting things done without the hindrance of frequent restarts and disruptions. Whether you're an enterprise user or just an enthusiastic Windows aficionado, these developments are worth keeping an eye on.

Source: BleepingComputer Microsoft now testing hotpatch on Windows 11 24H2 and Windows 365
 


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