Hello, firstly im not entirely sure if this is the correct undercategory of tech support - but hopefully the right people sees it nontheless.
I borrowed my computer to a visiting friend, and he played a couple of games on it on his own account. Since then i cant log into my accounts.
It writes Unknown Error while showing the message of the day, but doesnt go any further.
This happend 2 days ago and it still doesnt work.
I also have a laptop, so i tried the same thing on it to see if something was wrong with my stationary computer - but allas no! exactly the same thing happend to my laptop and now neither of my computers can log into any of my 3 accounts.


How to i/you correct this.
Id Love some advice and would greatly appreciate it :*)

Thanks a bunch in advance