Is your game connected to steam? And if not you may need to make a steam account. Many copies of PC BO2 run through steam. If you have this stuff then try running it in safe mode or on an account with admin privileges.
I have the same problem, except that i can play in single player but not zombie mod or multiplayer, although they were working fine before but now i can't seem to run them, they are displayed in the task manager but use only 5-6 mb and won't start
I have the same problem, except that i can play in single player but not zombie mod or multiplayer, although they were working fine before but now i can't seem to run them, they are displayed in the task manager but use only 5-6 mb and won't start
re install the game and steam uninstall then restart then weigh, an hour, or 2, then install it again i hope this helps