Looks like there is as issue with Windows 11 September patches and Explorer.exe crashing with Citrix and FSLogix container profiles. Multiple people reporting the issue on the Citrix sub-reddit. Edit: Added an "and" between Citrix and FSLogix.

I see it is a windows security feature they enabled. Are you getting that error messages others reported?

@Jeff Riechers I do not see event ID 26 in the application logs as mentioned there. I do get an event 1000 for faulting application Explorer.exe.

So updated my lab stuff that is on 2607 upm. no crashes here.

no problems on my server 2022 image with fslogix profile and odfc containers

Might only be Windows 11. If I have time I will spin up some older fslogix builds to see if I can replicate.

Yes, i can confirm. Windows 11 25H2 and FSLogix with latest updates

@c4rm0 I have seen articles that describes issues with Remote Desktop Services after installing the September patches. You have not seen anything like that? I figured that since RDS is required for Citrix on shared desktop, it would cause issues there as well. So far I have not seen anything that supports that, but I don't feel like patching a lot of servers without more info.

KIR didn't fix the issue for us too, Citrix 2402CU4, Latest Fslogix, PVS non-persistent Windows 11 25h2.

Anyone have a workaround for the issue? (Windows 11 25H2) don't want to push it any longer 😣

Omnissa meanwhile have a suggested workaround until MS provide fix kb.omnissa.com/s/article/6001783?lang=en_US haven't tried it myself yet with CPM, but also referenced on community.citrix.com/forums/topic/259139-any-news-on-the-explorerexe-not-starting-after-kb5120998kb5124008-topic

Hi guys, there is a KIR available: download.microsoft.com/download/…