I can not login into Inquisitor Marty anymore.
It is a while since I've played it and now after the intro I receive the message "Authentication error"
Thanks in advance for your help!
Speaking of crating a new Windows user it made me thought "and what if...?"
And yes, the most basic action resolved the situation. I restarted the PC and now it's working. (shame on me)
Thank you for your help and sorry for the trouble!
I tried and it don't work.
Same message "Authentication error".
Just as @RIGG mentioned please try to run the game as administrator by right-clicking on the exe. There you will find the option.
try creating a new windows user and run as administrator