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

Corrupted runtimes can cause memory allocation failures.

Follow the prioritized list above: update GPU drivers, verify/repair game files, disable overlays, increase virtual memory, and try running as Administrator; then work through config, GPU, and hardware checks. If unresolved, gather system details and crash logs and request targeted help with that information.

To fix the "Failed to allocate from state pool" Call of Duty: Black Ops II , try the following solutions based on community success: 1. Adjust Campaign Choices (The "Harper" Fix) This error frequently occurs during the "Cordis Die" (LA Mission) or the mission following the ship section. Steam Community Rewind the Story : Go back to the mission where you must choose between Harper and Farid Change Your Choice : Choose to shoot Harper

. Many players report that having Harper present in later cutscenes causes a memory allocation bug that triggers this error. Selecting this path often allows the game to proceed without crashing. Steam Community 2. Lower Graphics & Windowed Mode

If the error occurs during specific cutscenes (like the helicopter crash in the LA mission), reducing the memory load can help. Steam Community : Set all graphical options to the lowest possible setting : Change the game to Windowed Mode

and select a resolution lower than your monitor's native resolution. : Restart the mission entirely with these settings applied. Steam Community 3. Clear Localized Files

For some players, deleting specific localized files can resolve memory initialization errors. Navigate to your game's installation folder. Locate and files named starting with localized_English_iwXX (or your specific language). After deleting, use Steam to verify the integrity of game files to redownload clean versions. 4. Compatibility & Admin Settings

Newer versions of Windows (10/11) can cause "unhandled exceptions" or state pool failures. Steam Community Right-click the game executable and select Properties Compatibility tab, check "Run this program in compatibility mode for Windows 8" (or Windows 7). "Disable fullscreen optimizations" "Run this program as an administrator" 5. Disable Overlays and Antivirus

Background applications can interfere with memory allocation. Steam Community

BO2 Error: Failed to allocate from state pool :: Call of Duty Corrupted runtimes can cause memory allocation failures

The "failed to allocate from state pool" error is a classic case of a brilliant game held back by outdated memory management. But as you’ve seen, no single error is insurmountable. For 90% of users, Fix #1 (editing config_mp.cfg to raise r_statePoolSize to 1024) will solve the problem instantly. For the remaining 10%, combining the 4GB patch, DXVK, and Plutonium launcher will deliver a stable, crash-free experience.

Call of Duty: Black Ops 2 is still the best in the series. Don’t let a decade-old memory bug ruin your Raid search-and-destroy or your Town survival high round. Apply these fixes, grab your MSMC, and get back on the sticks.

Did this guide help you? Share it with a friend who keeps rage-quitting every time the error pops up. And if you discover a new fix, post it in the comments below – the community is still going strong in 2026.

Keywords used: call of duty black ops 2 failed to allocate from state pool fix, BO2 state pool error, r_statePoolSize, black ops 2 memory allocation crash, Plutonium state pool fix.

Call of Duty: Black Ops 2 remains a fan-favorite classic, but modern PC hardware and Windows updates often trigger the frustrating "Failed to allocate from state pool" error. This crash typically occurs during the startup sequence or when loading into a multiplayer match. Because the game was designed for older memory architectures, it occasionally fails to communicate with modern DirectX shaders or system RAM.

Here is a comprehensive guide to fixing the "Failed to allocate from state pool" error so you can get back into the action. Update or Roll Back Graphics Drivers

The state pool error is almost always tied to how your GPU handles the game’s shaders.

Check for Updates: Open your Nvidia GeForce Experience or AMD Software and ensure you are on the latest "Game Ready" driver.

Clean Install: If the error persists, use Display Driver Uninstaller (DDU) to completely wipe your drivers and perform a fresh installation. To fix the "Failed to allocate from state

Legacy Support: For some older cards, installing a driver version from 6–12 months ago can sometimes resolve compatibility issues that newer drivers overlook for legacy titles. Verify Integrity of Game Files

Corruption in the local game cache is a frequent culprit. Steam can automatically detect and replace missing or broken files. Open your Steam Library.

Right-click on Call of Duty: Black Ops 2 (Multiplayer, Zombies, or Campaign). Select Properties and then the Installed Files tab. Click Verify integrity of game files.

Wait for the process to complete and download any necessary replacements. Modify the Configuration File

Manually forcing the game to utilize a specific memory state can bypass the allocation failure.

Navigate to the game’s installation folder (usually Steam\steamapps\common\Call of Duty Black Ops II\players). Find the file named hardware.chg or listings.cfg.

Delete these files. The game will regenerate them with default settings upon the next launch, which often clears the state pool conflict. Adjust Compatibility Settings

Since Black Ops 2 was released in 2012, modern Windows 10 and 11 features like Fullscreen Optimization can interfere with its engine. Go to the Black Ops 2 installation directory.

Right-click the t6mp.exe (multiplayer) or t6sp.exe (single player). Select Properties and go to the Compatibility tab. Check Run this program as an administrator. Check Disable fullscreen optimizations. The "failed to allocate from state pool" error

Click Change high DPI settings and check Override high DPI scaling behavior. Run in Windowed Mode

If the game crashes before you can reach the main menu, you can force it to start in windowed mode, which uses a different memory allocation method. In Steam, right-click Black Ops 2 and select Properties. Under the General tab, find the Launch Options box. Type -windowed and close the window.

If the game starts successfully, you can change it back to Fullscreen in the in-game Video settings. Use the Plutonium Client

If the standard Steam version continues to fail, many players turn to the Plutonium project. Plutonium is a third-party client for Black Ops 2 that includes numerous engine fixes, dedicated servers, and improved anticheat. It is specifically designed to run on modern hardware and fixes the "state pool" error by default through its custom engine patches. Final Check: System RAM and Page File

Ensure your Windows Page File is managed by the system. If you have manually set a very small Page File size to save disk space, Black Ops 2 may run out of virtual memory addresses, triggering the allocation error. Set your Virtual Memory to "System Managed" in the Windows Advanced System Settings to ensure the game has the "pool" it needs to draw from.

The error "Failed to allocate from state pool" in Call of Duty: Black Ops 2 (and other games using older DirectX 9 rendering) typically occurs when the game runs out of available video memory or hits a memory allocation bug, especially on modern systems with more than 2–4 GB of VRAM.

Here’s how to fix it:

Activision never officially patched this for PC. The last update was in 2013, long before SSD/NVMe drives and 8GB+ GPUs were standard. Consequently, the game’s memory allocator is outdated. We must outsmart it manually.

BO2’s .exe is 32-bit and can’t use more than ~3.5GB RAM.

The map creator may have used textures that are too large. Try:

This is often a server-side issue. The host may have modded perks or killstreaks that exceed memory limits.