Right-click on Call of Duty: Black Ops 2 and select . Go to the Installed Files (or Local Files ) tab. Click Verify integrity of game files .

Wait for Steam to scan and automatically redownload any corrupted files. Step 6: Use a Dedicated Custom Client (Plutonium)

typically occurs when the game runs out of allocated memory during specific campaign missions (most notably "Celerium" or "Cordis Die") or high-round Zombies matches. Because Treyarch never released an official patch for this specific memory leak, community-driven workarounds are the only reliable solutions.

For the LA mission (during the presidential car segment), some users report that hitting the button during the transition can prevent the crash. Save Files:

An outdated environment breaks how Windows allocates physical RAM to older DirectX 9/11 game titles.

If you've tried these methods and still experience crashes, please

Lower the to a setting below your native monitor (e.g., 1024x768 or 800x600). Set the Display Mode to Windowed . Turn off or minimize every advanced graphic feature: Texture Quality : Low Shadows : Off Anti-Aliasing : None Ambient Occlusion : Off

Right-click Black Ops 2 in your Steam Library > Select Properties > Toggle off Enable the Steam Overlay while in-game .