MSTSC crashing after folder redirection event 501.

Question

Hi There.

I'm encountering issues with a user on W11Business (23H2) where MSTSC crashes and closes the RemoteAPP connection. There are several folders being redirected to an RDS Server operating on 2022 DC. Strangely, each time the process crashes, there's a warning log concerning Folder Redirection.

Warning Log:

The folder redirection policy hasn't been applied. It's been delayed until the next sign-in because the group policy sign-in optimization is in effect.

Crash Log:

Faulting application name: mstsc.exe, version: 10.0.22621.3672, time stamp: 0xafe3279a

Faulting module name: ntdll.dll, version: 10.0.22621.3733, time stamp: 0x67ca8829

Exception code: 0xc0000409

Fault offset: 0x000000000008f0bf

Faulting process id: 0x0x46A8

Faulting application start time: 0x0x1DADC4F3776E753

Faulting application path: C:\Windows\System32\mstsc.exe

Faulting module path: C:\WINDOWS\SYSTEM32\ntdll.dll

Report Id: be346920-f95e-45e5-8454-21870924a676

Faulting package full name: 

Faulting package-relative application ID: 

Have another user running W11 Business without any issues so far.

Already tried with DISM / SFC / Checked drivers and pending updates. Nothing really showed up.

Any clue what could happen??

Answer 1

Hello,

The faulting module is ntdll.dll, which is one of the last application-mode components before transitioning to kernel mode.

If it crashes due to this module, you can try updating your PC to the latest version, which should also update this component.

The methods you've tried (DISM and SFC) help to restore your PC to its original state based on the current version's image.

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