A recent optional update for Windows 11 version 24H2 is causing significant video playback issues for users with certain media applications.

Microsoft has confirmed that the update, released in late August, can prevent protected content from playing correctly on Blu-Ray, DVD, and some Digital TV software.

The issue stems from the non-security preview update KB5064081, released on August 29, 2025, and subsequent updates. Users who have installed this update may encounter problems when trying to view protected media content.

Reported symptoms include copyright protection errors, frequent playback interruptions, video freezing, or a persistent black screen where the video should be.

The bug specifically impacts applications that utilize the Enhanced Video Renderer (EVR) framework combined with High-bandwidth Digital Content Protection (HDCP) enforcement or Digital Rights Management (DRM) for audio.

Microsoft has clarified that this problem does not affect popular video streaming services, which use different content protection mechanisms.

The issue is limited to local media playback applications that rely on the affected Windows components for DRM and copyright verification.

Affected Platforms

Microsoft officially acknowledged the problem on its Windows health dashboard on September 19, 2025. The issue is confirmed to affect client systems running Windows 11, version 24H2, specifically those on OS Build 26100.5074 or later.

The problem is isolated to this specific version and does not impact any Windows Server platforms. The root cause is tied to how the operating system handles protected media paths after the installation of KB5064081.

This update appears to have introduced a regression that disrupts the communication between the media application, the graphics driver, and the operating system’s DRM subsystem, leading to playback failures when content protection like HDCP is enforced.

In its official statement, Microsoft confirmed that it is actively investigating the issue and working on a permanent solution. The company has stated that a resolution will be provided in a future Windows update.

However, a specific timeline for the release of this fix has not yet been announced. For now, affected users have no official workaround other than potentially uninstalling the problematic cumulative update, which may not be ideal as it could remove other non-security fixes.

Users experiencing these playback issues are advised to monitor for upcoming Windows updates, as the fix will be deployed through the standard Windows Update service once it is ready. Microsoft will provide more information as its investigation progresses and a patch becomes available.

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