: There are reports that disabling UPnP on your router or clearing Windows Firewall rules for the game can occasionally resolve the "5MB" prompt, as it may be triggered by a failed handshake with multiplayer servers. Call of Duty: Advanced Warfare General Discussions
: High or Ultra texture settings can trigger memory-related crashes. Use the GeForce Experience tool to set all game settings to Low before launching, then gradually increase them once the game is running.
: If using an NVIDIA card, use GeForce Experience to set all game settings to Low before launching. Once in-game, you can typically raise them again.
This is the lowest hanging fruit, yet it works for 40% of users.
The game stores your settings and shader cache in a folder that frequently gets corrupted.
Note: If you installed Windows on a different drive, replace C: with your OS drive.
Editing the registry incorrectly can break Windows. Follow exactly.
The game may trigger this error if it lacks the "write privileges" needed to save data to its own folder.