This if more for if your mod menu won't inject in bo2
For windows 10 not sure about any other windows versions
Hello Today i'm going to show you how to fix app is already running.
First You Have to go to control panel
Then search for power and click change what the buttons do
Next Click Change Settings that are currently Unavailable
In Shutdown Settings
Uncheck Fast Startup
Now restart Your Computer and your good to go permanently!
Thanks!
Pictures coming soon