Has anyone come across something like this before?
This is on a Dell T7500 workstation. I can log in as Administrator without any issue. One user account (local login, no domain) logs in, gets the "Welcome" screen and then it fades to this screen:
I cannot CTRL+ALT+DEL from this screen. Nothing but a hard power down will get out of it.
I can enter Safe Mode and disable all startup items, and all non-Microsoft services and it still does this. I disabled ALL services (including Microsoft) and it booted to the desktop, but it's basically unusable without MS services. I've uninstalled the nVidia driver, but that didn't change anything.
nVidia graphics card. AVG anti-virus. Windows 7 Professional 64-bit.
Any help would be appreciated. Thank you.