I have played bc2 for many hours on my computer a year or two ago.
Now after not playing for very long I reinstalled it (all same hardware) and everything goes smoothly untill about 5-10 minutes into gameplay.
It makes strange dubstep type sounds and crashes to the desktop...
THEN (the unusual part)
it sacks every program I have. skype and chrome crash. and other programs i have up crash too. Even if I dont have any other programs running, after the crash, i cant get any of them to open. chrome crashes before it opens as with every other program.
updated all drivers and versions of the game.
tried the disabling sound via BIOS
AMD Phenom II (no overclocking)
Geforce GTS 450
16GB 1600 crucial memory
All I can say is. You have a software bug.
Honestly I suggest getting a gtx 660 or 2 650 to boost cards.
An amd fx 6 core or i3 3220 or if your or willing a i5 4670
Do a clean install of windows and download and install steam + games