Crashes

[MSMC]

I was able to play the game for the first couple of days, 10 hours logged on steam, but all of a sudden every time I run BO2 (regardless of using GameBooster or not) the screen turns black and the loading mouse icon comes up, before it turns back into a mouse icon. I have to CTRL+ALT+DEL to get out of it, and it says "Black Ops 2 multiplayer has stopped working".

I'm using a Lenovo G570, and I've updated all drivers and validated my steam game files, disabled steam sync, changed dates/timezones, etc

Any ideas?

[masked123]

i got the same problem when i join multiplayer public games it freezes and does the same thing.Also the same thing happens,when i click on the PUBLIC create a class menu.

[Horror]

Erm ... It freezes for every1 ? Just have 5 mins of patience and then it should be good.
If not, then idk