User login mystery

[Symbiosis]

Hi all and help please...

 

I have a user on a Win 7 PC. They started to have an issue whereby the monitor would go black on login with just the mouse pointer showing (which they could not move) and after a while they would be returned to the login prompt. They can login elsewhere, and anyone else can login to the PC successfully

 

I've found that if I delete the users profile folder and their entry in the registry, they can log on as normal once - and then the issue re-appears for any subsequent logon attempts

 

Looking at the task manager in Impero it would seem that explorer is not starting. I can send a message to the PC within whilst the screen is black and it shows on the screen, and also plugging in a USB brings up a notification window - so it doesn't appear to be anything to do with display drivers etc. The logs don't show anything out the ordinary

 

At a bit of a loss frankly - any thoughts please?

[LTurner3692]

I had this with a user, Once the screen came on i had to log off and back on and it normally worked, i didn't leave it like this for long before i put them on Win10 though.

[Symbiosis]

Thanks, unfortunately doesnt make any difference if they are logged off. The issue is there every login

[Symbiosis]

And it was a group policy that was doing this! Found it at least!

[mavhc]

And it was a group policy that was doing this! Found it at least!

 

What policy caused it?