What a horrible community. Can't even ask for help without being made a mockery of.
@timhuynhvu, it seems like your graphics card could be better (not sure but it doesn't seem like a great card), and I think your harddrive memory is full or close to full.
I'm really not great with computers so I suggest buying a new one (doesn't have to be too expensive no need to go over $500) or you could look for advice at USFUnited
That is the official Soldier Front scrim community website and hopefully there are a couple of friendly enough people that can help you there in terms of computer advice.