Go to steamapps\common\Call of Duty Black Ops II\t6mp.exe (or t6sp.exe ) → Properties → Compatibility → Run as admin + Windows 7 mode.
If the game launched once but now fails, your configuration file might be corrupt. In your game folder, open the Delete the files ending in hardware.chp hardware_zm.chp Go to steamapps\common\Call of Duty Black Ops II\t6mp
✅ Fixes:
What happens