It blocks every attempt to modify any file anywhere. I give Steam and all its subsidiary .exes permission and then it says that there is no permission to modify 'Documents'. I just bought the darned machine to game with and it is freaking driving me nuts. Any suggestions on where to go to fix this?

Thanks , Cristiano

Something's off because thousands use Steam, Steam games without having to fiddle with permissions or much else. Keep writing what may be different about your Windows and PC until a clue pops up.