Sounds silly I know, but my PC has Finnish () windows and language is well, like sandscript. I understand little. They even change the words so you cannot simply find System, or File, or System Restore. They used completely different words so cannot translate.
Anyway, as of yesterday we cannot change users. We both have log on screens, but who ever logs on first (no Problem) cannot then "Change User". When you click on change user it looks OK, says it is Loading your preferences, but nothing appears, just wall paper.
Oh we have visitors who have been playing on PC. I cannot even find system restore to try to go back 3 days.