PC suddenly crashes

well i think the problem is my vga...... I tried a complete uninstall of the driver include delete the driver software option and windows kept on installing various versions of the driver until it installed one driver that had Microsoft corporation on it as seen in the pic. I came till a point when windows kept on installing that driver and i could not remove its software. When doing installing the latest driver my pc froze immediatly with the same bug check error....... i am gonna try it out with the microsoft corporation driver but now i got no temp monitor, this driver is very basic as i can't monitor any of the vga sensors anymore.

What oyu guys think? Any ideas how i can stop windows 7 from installing drivers automatically when it scans for new hardware.?)

Thanks

ok then. This weekend ill be abit light on work and i am gonna try install windows 7 again on an older hdd and install things slowly still i start getting the problems again. If the problems appear immediatly after the install then ill try replace the ram.

The funny thing is that my pc seems to freeze when i am using a particular word document, and when running more intensive games or any other document it does not complain..... so i am starting to suspect a particular program. Ill do a v-check in safe-mode to make sure there is no viruses that might be causing this problem.

Any other ideas pls?

Thanks

PS. I let my brother play for a whole day on my pc. He played GTA San Andreas and pc did not freeze nothing, he continued his assignment and checked facebook every so often using firefox 3.6. I came home and switched on windows live messenger and kept it running in the background, and suddenly my pc froze while i had publisher minimised, CPU level 1% when it froze, mouse moves but i can't click on anything until eventually after clicking like 10 fast clicks the mouse also freezes..... could messenger be causing this problem? my brother does not use msn so he surely did not use it while he was playing. Tried changing compatibility mode for live messenger to vista xp 2. If pc freezes again, gonna go to xp sp3.

Thanks