Microsoft Addresses Windows 11 KB5063878 Issue with AutoCAD Admin Requests and OBS NDI Audio Video Lag

Microsoft has acknowledged an issue affecting Windows 11 KB5063878, particularly regarding the operation of AutoCAD. Users need to launch AutoCAD with administrative privileges, resulting in a User Account Control (UAC) prompt that standard user accounts cannot bypass. This challenge is notably affecting educational institutions and labs, even on clean profiles and some administrator accounts. Moreover, Microsoft confirmed that this issue can cause audio and video feed delays in specific circumstances, which impacts NDI (Network Device Interface) streams.

According to reports shared with Windows Latest, when AutoCAD (along with Civil 3D and Inventor) is initiated, an MSI installer prompts the UAC window for admin rights. However, this scenario proves problematic since students typically operate under standard accounts and are therefore unable to access the software. If a user cancels the unnecessary UAC prompt, they may encounter MSI errors, such as error code 1730, which first came to light in early August 2025—aligning closely with Windows 11’s Patch Tuesday updates. Notably, updates KB5063875, KB5064010, along with Windows 10 updates KB5063877 and KB5063709, could also trigger similar UAC prompts.

Microsoft is aware of these reports, confirming that the issue impacts AutoCAD versions ranging from 2022 to 2026. Consequently, affected users encounter an admin access prompt that prevents the application from launching unless access is granted. On a positive note, Autodesk is collaborating with Microsoft to devise a resolution for this problem.

For individuals experiencing difficulties, Microsoft suggests uninstalling the problematic Windows update and postponing future updates for at least seven days. Currently, neither Autodesk nor Microsoft has reported any alternative workarounds to resolve this issue.

Streaming Issues Related to NDI and Windows 11 24H2 Updates

In addition to the aforementioned AutoCAD issues, Microsoft has confirmed the existence of a bug that hampers audio and video streaming, particularly for users of applications like OBS (Open Broadcaster Software).While the primary problem seems to impact OBS, it may also affect users of other NDI-related applications in infrequent cases.

A recent support document uncovered by Windows Latest indicates that the Windows 11 KB5063878 update disrupts NDI streams. For clarity, NDI allows for real-time streaming of digital video and audio, often utilized in OBS configurations. Users may notice significant lags or performance decline while streaming content utilizing NDI on their systems.

Windows 11 August 2025 Update OBS NDI issue

If you utilize NDI and are experiencing these issues, the NDI team has provided documentation recommending either the removal of the update or a change to the NDI Receive Mode, opting for either TCP or UDP to work around potential issues associated with RUDP. If these methods do not resolve the lagging problems, uninstalling the update may be your best option.

It’s crucial to recognize that most users may not encounter these issues; however, Windows Latest reports that the bug related to KB5063878 significantly affects NDI streams employing a “reliable UDP”transport, leading to choppy and lagging video performance. This issue is most noticeable when the source PC utilizes Display Capture features in OBS or NDI Tools.

Although not widely used, this information highlights specific scenarios where the update can create major complications.

As one user remarked on a forum post shared by Windows Latest, “For some of us using a two-PC streaming setup for platforms like Twitch, KB5063878 has disrupted functionalities that had reliably been working for years. Is this possibly related to certificate issues?” Another user commented on their experience with video stutters occurring sporadically, stating that the streams run flawlessly without the update.

While some users indicate they cannot indefinitely forgo this critical security update, the specific loss of functionality in an OBS plugin remains concerning. For those with elaborate setups or unique use cases, the August 2025 Update may thus continue to present significant challenges related to audio and video quality, implying that the problem lies not with the internet connection but rather with the Windows operating system.

The stuttering and lag issues can arise in Windows 11 24H2 as a result of uneven packet timing, leading to filled and emptied buffers.“The streaming applications affected, including OBS and NDI Tools, show pronounced issues when using ‘Display Capture’ on the same PC source, even in low-bandwidth conditions, ” Microsoft acknowledged in their support documentation.

In a recent statement to Windows Latest, Microsoft expressed intent to roll out a fix in a forthcoming update. As it stands, the cumulative update (KB5063878) for Windows 11 24H2 has been problematic for some users, with earlier reports also revealing potential SSD corruption or disappearance following the patch release. How has this update affected your computer’s performance?

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