FsLogix - Unclean logoff causing locked files until server reboot

Much R 101

Problem is described by M4deman under unclean-logoff-causing-locked-files-until-server-reboot

It seems to have something to do with the 2009 version.
The latest version of FSLogix is installed whats-new

Description

After a user logoff, the "System" Process (PID 4) locks the following folders:

C:\Users\local_username\AppData\Local\Microsoft\Credentials
C:\Users\local_username\AppData\Roaming\Microsoft\Credentials

The user is completely logged of, according to Task Manager.

In the FSLogix Profile Log file I can see the following:

[07:53:55.601][tid:00000c90.0000ce44][ERROR:00000020] Delete profile failed for sid S-1-5-21-3364776539-3721753400-1968955100-1179, Cleaning up manually. (Der Prozess kann nicht auf die Datei zugreifen, da sie von einem anderen Prozess verwendet wird.)
The last sentence means that the process cannot access the file, because another process already uses it.

Also the whole "local_username" folder cannot be deleted:

[08:23:15.479][tid:00000c90.0000bcc4][WARN: 00000005] Failed to delete C:\Users\local_usename (Access is denied)
Access Denied

Does someone have any info on this behaviour?

Anonymous

2021-01-14T03:03:58.32+00:00

Hello @Much R

Did you check affected user has full control and Owner over their FSLogix Folder and the VHDX files ?

Thanks
Karlie
Much R 101 Reputation points

2021-02-02T08:02:21.997+00:00

Hello,

Where is my answer from yesterday?
Why was this deleted?

How can I open a ticket at Microsoft now?

Thank you
Anonymous

2021-02-02T08:16:39.607+00:00

Hello @Much R

sorry I was going to delete my comment as it wasn't helpful, and your comment is below mine, so it seems they were deleted together. I want to restore but it doesn't has this option.

FSLogix is supported for use with versions of Windows and Office that are still included in the Microsoft Support Lifecycle.

How to open a FSLogix Support Request
https://social.msdn.microsoft.com/Forums/en-US/14ea5f6f-760b-4ad2-83cf-23c3cbc1bcc4/how-to-open-a-fslogix-support-request?forum=FSLogix

Best regards
Karlie
Germain 11 Reputation points

2021-02-19T11:44:10.117+00:00

We are currently experiencing the same issue. The user VHDX is locked by system and can only be unlocked by rebooting the server.
Has Microsoft acknowledged this issue?

Currently using: 2.9.7654.46150
Bracko Ewald 31 Reputation points

2021-02-19T12:10:09.137+00:00

Did you activate the registry value HKEY_LOCAL_MACHINE\SOFTWARE\FSLogix\Apps\CleanupInvalidSessions (REG_DWORD, 0x1)?
Do you use Cloud Cache or not?

Also, maybe you can check with the frx command line tool if there are still some redirects pointing to the use VHDX file. You can then use that tool to delete them manually and detach the VHDX files afterwards using diskpart.
Marius Neuhaus 1 Reputation point

2021-03-09T10:31:38.737+00:00

Hello,

we have the same problem.
We use on-premise terminalserver.:
Windows Server 2019
Citrix 1912 CU2 LTSR
FSLogix 2.9.7621.30127

I've tried the CleanupInvalidSessions RegKey, but it doesn't effect.
We don't use Cloud Cache.
FSLogix Configuration only local and not per gpo.
The frx command line tool dont show redirects pointing to the use VHDX file.
Permission are set correct. Users work correctly with the containers.
Luckily the problem occurs only randomly and not at every logoff.

In the FSLogix Configuration we include the group domain-users and exclude the domain-administrators.
Could it be a Problem?

Best Regards,
Marius
itsupport 1 Reputation point

2021-05-26T12:40:37.147+00:00

When this happens are you left with multiple <USERNAME>.original folders? I've seen it go as high as <USERNAME>.original11 before I just manually delete all the folders.
Guido Racamato 26 Reputation points

2021-09-28T17:39:34.337+00:00

Hello Everyone, For the Group Policy Access Denied, once you get an affected user, could you please modify the following registry? There's no reboot required.

HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\ProfileService\References\<SID affected user>
REG_BINARY: RefCount
Value: 0
Jon McLeod 1 Reputation point

2021-11-19T14:56:08.267+00:00

This is the answer. Thank you.
Farooq 5 Reputation points

2024-02-14T12:02:36.9533333+00:00

We are having the same issue. We have an RDS environment and time to time users get logged in with Temporary profile, when I check the FSlogix logs I am seeing the following error - Failed to open virtual disk: \server\Profiles\S-1-5-21-26711-2174_user\Profile_user.vhd (The process cannot access the file because it is being used by another process.)
What we done to try resolve this or at least try find the cause and reduce downtime is, we have removed AV from all RDS host, we have created a script which logs out all users at midnight but issue is still occurring. We have a case opened with Microsoft but unfortunately there has been no resolution. Another issue we had is where users could not sign into their Outlook, teams, Office profile on the host. Has anyone else experiencing this issue and has anyone managed to resolve this? Any help or suggestion would be much appreciated.

107 answers

Sven Goossens 1 Reputation point

2021-05-28T09:24:03.237+00:00

We saw the issue dissappear after completely removing the antivirus. So I'm not really sure this is caused by Fslogix.
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JLugo-ITCS 6 Reputation points

2021-05-28T13:22:39.167+00:00

Now that you mentioned that, I recall seeing antivirus mentioned somewhere else in the FSLogix KB's. I do need AV scanning the hosts and always thought we only needed to exclude the containers.

"Frxrobocopy is used to exclude the file copy, done by the FSLogix agent, from Anti-virus scanners."

https://learn.microsoft.com/en-us/fslogix/fslogix-installed-components-functions-reference#frxrobocopyexe

I believe robocopy is used regardless if you use cloud cache or not, but they could expand that description. I'll give this a try over the weekend.
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Robert Berggren 1 Reputation point

2021-05-28T07:24:27.62+00:00

Does anyone have an update on this? Unfortunately not very good. Will have to revert to rebooting my seesion hosts every night now until this is resolved.
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Micheal Thompson 1 Reputation point

2021-05-13T12:31:29.343+00:00

I am still experiencing this issue as of 13/05/2021.

Multiple customers experiencing this, it's random. Did anyone find a fix for this yet? I see some people mentioning to just roll back to release 2004 of FSLogix should I try this?

I am also going to try the registry key people who have previously mentioned CleanUpInvalidSessions.

Did have one customer who was running 2 Citrix VDAs and this was happening daily have since removed a VDA and increased the Ram/CPU of the single VDA to match that of 2 VDA servers. And it doesn't happen anymore? Yes, I have concurrent sessions enabled.

Weird...
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Gianluca Melis 101 Reputation points

2021-05-13T13:22:19.607+00:00

Literally just try a downgrade. It’s 2 restarts away and can save you lots of nerves!

Remember to fully uninstall FSL restart and install then restart again!
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Deepak Kumar 11 Reputation points

2021-05-08T11:53:09.45+00:00
Hello, I am very new to fslogix, and just finished setting up for a customer.

Windows Server 2019
Citrix Apps & Desktop : 1912 LTSR CU2
FsLogix Apps : 2.9.7654.46150 (No cloudcache)
All MacAfee AV exclusions recommended by Citrix & Microsoft

As of now I am not getting any issue while deleting the profiles after user log off, But if i get i would take below steps to go more in detail . I understood most of you already did these troubleshooting but hope to add new things . Please do this on your test server first.
1. Download sysinternals tools from Microsoft & run procmon tool (Logs can be very big so apply filters accordingly)
2. Search the logs with local_username & find the details after user log off
3. Assuming credential folder is not being deleted ( Try to add NT Authority/System and give rights to delete)..In my case I'm using centralized template profile so its easy to do from single place. If not use group policy to add security on folder or registry or use default profile folders.
4. Delete existing vhdx and check
I hope this will help or give new insights if not.

Happy debugging.

Thanks
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Dlo 96 Reputation points

2021-05-05T10:54:12.473+00:00

I will have to check on the GPO for the registry change not sure we use it either.

We have VHD's that get hung randomly and also folders not deleted and also the registry key issue.

We did try the fix Microsoft gave us in our dev environment but we had to put the server in test mode but the small tests we did was a bit better.
They said this is a fix for the windows search feature so not a patch for fslogix itself.

Sadly it will be rolled into a monthly update for windows and they are not sure when. I am pressing them for a date so we can try this in a bigger environment instead of our smaller test one. As it puts a water mark on the desktop saying test mode so we didnt want to roll this out to a big area.
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Gianluca Melis 101 Reputation points

2021-05-06T09:40:29.847+00:00

what about downgrading to 2004 (2.9.7349.30108) ?
That fixed all the Problems described in this thread.

Dlo 96 Reputation points

2021-05-26T18:04:01.567+00:00

We had some other issues with the older version. We are at least getting our VHD dismounted now but we have the folders still there. We do weekly reboots which is keeping us better atm till its resolved.
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FsLogix - Unclean logoff causing locked files until server reboot

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