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RDP issues for a single user -Faulting application name: LogonUI.exe

Bojan Zivkovic 581 Reputation points
2025-04-07T07:36:52.7633333+00:00

Hi, I have a single user having RDP issues - he is almost immediately kicked out from RDP with the following entry recorded in the logs:

Faulting application name: LogonUI.exe, version: 10.0.20348.1, time stamp: 0x8b367c97

Faulting module name: Windows.UI.Xaml.dll, version: 10.0.20348.2849, time stamp: 0x7618b134

Exception code: 0xc000027b

Fault offset: 0x000000000081e0e8

Faulting process id: 0x1f5c

Faulting application start time: 0x01dba78ecfb54025

Faulting application path: C:\WINDOWS\system32\LogonUI.exe

Faulting module path: C:\Windows\System32\Windows.UI.Xaml.dll

Report Id: 8a788d37-9e95-4f75-acce-87eb994c93f2

Faulting package full name:

Faulting package-relative application ID:

DISM /Online /Cleanup-Image /RestoreHealth - The restore operation completed successfully.

Problem is still present. What can be done here?

Windows Server Remote and virtual desktops Remote desktop services and terminal services
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  1. Smith Pham 0 Reputation points
    2025-04-28T10:49:16.7733333+00:00

    This issue appears to be related to the LogonUI.exe process crashing due to a problem with the Windows.UI.Xaml.dll module during RDP connections. The error code 0xc000027b typically indicates a DLL initialization failure.

    Since you've already run DISM /Online /Cleanup-Image /RestoreHealth and the problem persists, here are several troubleshooting steps to try:

    1. Run the System File Checker to repair corrupted system files:
    sfc /scannow
    1. Check if there are pending Windows updates that might fix the issue.
    2. Try re-registering the Windows.UI.Xaml.dll file:
    1. Create a new user profile to see if the issue is specific to the current user profile.
    2. Modify the RDP connection settings:
    • Disable UDP and force TCP by editing the RDP file and adding "enablecredsspsupport:i:0"
      • Try a different RDP client version or compatibility mode
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