Microsoft Acknowledges DRM Problems in Windows 11 September 2025 Update

The September 2025 Update for Windows 11, identified as KB5065426, has been the source of various complications for users, although impact varies. Following its rollout, users reported issues with installation errors, which Windows Latest noted. For those who successfully installed the update, the repercussions continue with some experiencing Digital Rights Management (DRM) problems.

According to a confirmation by Microsoft, the root of the issue stems from a prior update—KB5064081 released in August 2025. Users who have installed either KB5064081, the September update (KB5065426), or any subsequent updates may find themselves affected.

Microsoft reported that some users are experiencing video playback issues, including jitteriness. However, it’s notable that platforms like Netflix seem to function without significant problems according to various tests. The company clarified that these playback issues are exclusive to digital TV and DVD applications.

More specifically, the problem occurs within applications that utilize the Enhanced Video Renderer component and enforce HDCP or DRM. For those who unwittingly use such applications, sluggishness in video playback likely indicates they are suffering from this update’s bug.

Microsoft reassured users that they are actively working on a resolution and will provide updates in future Windows releases. As of September 22, the next optional update is anticipated within the week, and there’s potential for a patch to address these issues.

Other Challenges with the September 2025 Patch Tuesday

In addition to DRM issues, users have reported complications with games utilizing the Javelin anti-cheat engine, affecting popular titles such as FIFA, F1, Battlefield, and NFL in certain scenarios. It is important to note, however, that these anti-cheat engine issues do not appear to be widespread.

Additional concerns have surfaced regarding DirectX 9 games, where users have reported rendering issues hindering their gaming experience during opening sequences due to distorted textures and colors.

Moreover, the update might negatively impact Microsoft Ink services. One user noted that “KB5065426 update has completely broken Microsoft. Ink.dll in. NET applications, ” highlighting the severity of some reported issues.

There are also mentions of PowerShell-related problems, which Microsoft is currently investigating. An update to the support document revealed that the company is aware of related issues, particularly involving PSDirect connections. While these are labeled as “edge cases, ” users experiencing them can encounter errors with PowerShell Direct (PSDirect) connections.

Additionally, Microsoft has identified a flaw in the September update that could disrupt Server Message Block (SMB) v1 functionality, making file sharing and connectivity problematic. Users can expect these issues to be addressed in future Windows updates.

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