Windows XP logoff hangs on 'Saving your settings'
I'm experiencing a random issue where approx 5-10 of our 350 XP desktops do not log off correctly each day and sit with the 'Saving you settings' message displayed on the screen. The desktop is not completely frozen at this point and it is possible to remotely connect to the drive etc, but will not gracefully shut down and needs to be cold power cycled.
These are Windows XP SP3 virtual desktops hosted on VMware ESX which are within a Citrix Xendesktop VDI. We are using Endpoint Protection v11.0.5002.333.
This was originally thought to be caused by Citrix as the issue started to occur shortly after upgrading to XenDesktop v4. We have a support case open with Citrix who have analysed dumps of the desktop's memory and the winlogon process. So far thay can see that winlogon.exe is waiting indefinitely for something, but cannot see what this is.
I have looked through the Symantec knowledge base and found other similar cases where SEP was thought to be the cause, for example:
Our SEP installs uses only AV and Anti-Spyware, we have Network Threat Protection and TruScan Proavtive Threat switched off.
Any help would be much appreciated as this is proving to be a pain to troubleshoot and we are running out of ideas.