Forum Discussion

JulienSenec's avatar
JulienSenec
Copper Contributor
Jul 28, 2025

UAC crash when submitting

Hello,

We have a fleet of Windows 10 PCs.

We are upgrading to Windows 11 and we realized along the way that all PCs running Windows 11 have a common issue: UAC crashes when credentials are submitted or even when you just want to close UAC.

I disabled secure desktop to see what was going on, and it turns out that UAC is going into “Not Responding” mode.

I tried reading the logs, but nothing useful came out of it except to tell me that it crashed. I tried another network, but there was no improvement. I disabled all Intune configuration profiles, but it was still the same. I installed all the updates available in Windows Update, but it was still the same. I checked the integrity of the OS, but it was still the same.

I'm really stuck. Could you please help me?

Thank you in advance.

Best regards,

deployment
device management
security

5 Replies

  • KapilArya's avatar
    KapilArya
    MVP
    Jul 30, 2025

    It looks like some software is conflicting and contributing to this issue.

    I recommend you to perform clean boot:

    https://www.kapilarya.com/how-to-clean-boot-your-windows-11

    Eliminate the conflicting software using clean boot and this can help you to resolve the issue.

    Let us know if this helps!

    Note: Included link in this reply refers to blog post by a trusted Microsoft MVP. 

    • JulienSenec's avatar
      JulienSenec
      Copper Contributor
      Aug 05, 2025

      So the problem must indeed be caused by a service. What is extremely strange is that I disabled all non-Microsoft services, and the problem disappeared. BUT, when I reactivated the various services, the problem did not return...
      So it is impossible to determine which service is causing the problem with this method.

  • Vaom's avatar
    Vaom
    Iron Contributor
    Jul 30, 2025

    It sounds like you're encountering a persistent issue with User Account Control (UAC) on Windows 11, where it crashes or becomes unresponsive during credential prompts or when closing UAC prompts. Since you've already tried several troubleshooting steps—disabling secure desktop, checking logs, testing on different networks, disabling Intune profiles, updating Windows, and verifying OS integrity.

  • foung's avatar
    foung
    Iron Contributor
    Jul 29, 2025

    Temporarily disable all non-Microsoft services and startup programs to see if a third-party app is causing the issue.