So yesterday I decided to reinstall CK2 and get back to playing it, however I've found that it will not run no matter what I do. I've looked around and tried everything to get it running, but it won't start up the launcher or even show up in the task manager. All it does on Steam is say "Game Running", for a few seconds then it disappears and nothing happens. One thing to note is that I can't start up most of the other paradox games, they all have the similar problem it would seem. I try to start them up but the launcher doesn't work/start up and nothing happens. I've tried CK2, EU4 and HOI4. The only game whose launcher actually works is Stellaris for some reason. Any help would be greatly appreciated.