Sims 2 crashed then the message: “Physical memory dump” appears

Hi, here are the specifics:

1. The partition where I installed the game is only 11 Gigs, there’s only 1 gig left.

2. The game slowed somewhat, but then, I’ve been playing for 7 hours or so.

3. There’s always a blue screen that appears, the past few weeks (PC’s new: new 80 Gig hard drive, Pentium D, Palit ddr3 videocard, 512 MB ddr2 RAM…) So there’s been something wrong with it for the past month. It will only start -up after the third time, and I often have to go to Last Known Good Configuration to get it to work. Also, I’ve tried to do countless system restores but the same problem.

I’ve been advised to transfer the games to the other partition.

But I need more advice before I proceed.