I'm stuck with the same issue : ALL info about user switching is gonen making my RemoteDesktop not working anymore.... I have set ALL the HideEntryPoints to 0 and rebooted, to no avail...
i'm hoping you found the solution !
Windows 7 Ultimate, 32 bit. Not on a domain. After I installed SP1, "Switch User" disappeared as an option.
"Hide entry points for Fast User Switching" in GP Editor is set to Not Configured.
I also checked the Application Information service as Andre suggested, and it was not running. I started it, set it to automatic startup, and rebooted. Still no joy.
I have uninstalled SP1, and I now have the option to switch users as I did before installing SP1.
What's going on here? I'd prefer to keep my system updated, but for this system anyway, the ability to switch users as opposed to logging off is more important.
Thanks for any suggestions.