Hi,
· Which game are you trying to play?
Step 1: Check if the game works in clean boot.
“How to perform Clean Boot” http://support.microsoft.com/kb/929135
Note: Please ensure that the computer is set to start as usual by following the step 7 from the article.
Step 2: You may try the steps mentioned in the below article
“Fixing game performance problems”: http://windows.microsoft.com/en-US/windows-vista/Fixing-game-performance-problems
Diana
Microsoft Answers Support Engineer
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