I created a new account in windows 8.1 pro . It appears that as soon as i log in , it loads for a sec , then immediatly i see , signing out message , and i am returned to login screen.

I have tried making a Microsoft and a local account . Doesnt help. I've also tried sfc scan . I think it is a problem with my user accounts . I'm sure they were corrupt , but i dont know how to heal it . I cant reinstall windows .
A dude in microsoft windows forums had a problem exactly as mine . He said that it turned out he had corrupt files . He says he needed to copy the folder C:/users/default from another working pc , and paste it in his computer . It worked . But i dont have any other win 8 pc . HELP ?