Microsoft has issued a warning about a significant issue impacting devices running Windows 11, version 24H2, that could block essential Windows Security updates.
The problem arises when users install this version of the operating system using media—such as CDs or USB drives—containing either the October 2024 or November 2024 security updates.
If affected, devices may be left in a state where subsequent security updates cannot be applied, leaving the system vulnerable.
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According to Microsoft’s official release, the issue is specific to installation media that integrates the October or November security patches (released between October 8, 2024, and November 12, 2024).
Devices utilizing the standard Windows Update process to install these security patches are unaffected. However, devices installed from flawed media may not receive critical future updates, compromising their security posture.
Affected Platforms
This issue does not extend to older versions of Windows or other platforms.
To mitigate the problem, Microsoft urges users and IT administrators not to install Windows 11, version 24H2, using installation media that includes October or November’s updates.
Instead, ensure that the installation media is updated to include the December 2024 monthly security update (released on December 10, 2024) or later. Users can also utilize the standard Windows Update mechanism, which does not encounter this issue.
For those who have already installed Windows 11, version 24H2 using the problematic media, Microsoft is actively working on a resolution but has yet to provide a detailed fix. Affected users should monitor Microsoft’s update page for further guidance.
This installation-related flaw joins a list of known issues affecting Windows 11, version 24H2.
Other reported problems include audio failures on devices with specific drivers, Auto HDR-related gaming glitches, and compatibility issues with third-party applications like Google Workspace Sync.
While most of these issues have either been mitigated or resolved, the current installation media problem poses a critical security risk that requires immediate attention.
Microsoft is collaborating with partners to resolve the issue and will provide updates as new fixes are developed.
Users are encouraged to check for OS updates regularly, follow Microsoft’s prescribed guidelines for creating installation media, and stay informed through official channels like the Windows Release Health page.
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