Optional but recommended: Uninstall your graphics card and soundcard drivers.
Update your graphics card and soundcard drivers. (does the error keep going? Does it give any .sys information? that would help me decide if it is a driver or not). Since it starts when you play a game, I'm willing to bet it is either your graphics card or soundcard
Optional but recommended: Run a memtest in safemode.
All I can do with this much info is
1. Refer to this. Following this would make everyone's lives here easier.
2. Agree with the others that you should update drivers (preferrably first delete them all then reinstall newest version).
3. Agree with the others that if that doesn't help you should give specs (refer to the guide).
4. Ask you to calm down and think of a proper title for a thread asking for help on a public forum with audience of all ages.