Blocked by old company signin popup. Help please!

Hi Folks,

After finishing my contract with a school last year, every time I try to open a PDF file of any kind, I get the file up, and then immediately afterwards, the school sign-in popup. 

I can't sign in as my email is no longer recognized, and am then blocked from exiting out of the sign in popup. I can't do anything at all - go back to the old document etc or exit Reader and am forced every time to force quit.

Terribly frustrating and as I am no longer on their register and the school is in lock-down, I havent been able to contact their help desk.

Any help out there?

Thanks muchly

Dandan 🙂