none of my games are working

kilmont258

Honorable
Dec 26, 2013
1
0
10,510
When i try to play any of my games that i have (through steam) it starts up the game and after 3 seconds it sends me back to my desktop as if nothing ever happened. my computer is a decent computer for gaming and last week i was playing all of my games perfectly fine then all of the sudden this starts happening. how do i fix it?