as soon as i open the games from steam the game closes after the valve logo automatically again n again i tried runing steam as an administrator too nthin worked out
Since the games actually load up it may not work but have you tried verifying game cache for these particular games? Right click on the game in steam and click properties/local files/verify integrity of game cache.
My Computer
At a glance
Windows 7 Home Premium x64 SP1Core i5 3570K 3.4GHz16GB Corsair Vengeance 1600MHzEVGA GTX 970 4GB