Call Of Duty Black Ops 2 Failed To Allocate From State Pool Fix Better →

Because the game was built for older Windows versions, adjusting its execution properties can resolve memory allocation errors. Microsoft Learn

: Sometimes just resuming from a checkpoint isn't enough; you may need to restart the entire mission to reset the memory pool. Because the game was built for older Windows

Windows 10's Game Bar and DVR can cause issues with some games. Disable them: Because the game was built for older Windows