Advanced Warfare received a few title updates, but the patching engine — based on an older Activision-internal system — was never overhauled. By 2015, Sledgehammer had moved on, and Activision saw more profit in redirecting players to Black Ops III and Infinite Warfare . The error persists today because the game’s installer logic still checks free space against , but miscalculates when drives are nearly full, fragmented, or have hidden system reservations.
When Advanced Warfare (and several other Call of Duty titles from the Xbox 360/PS3 generation) was ported to PC, Activision used a patching system that requires during installation or updates. Specifically: Call Of Duty Advanced Warfare Insufficient Free Disk Space
If you have Modern Warfare or Warzone installed, those games share assets and can bloat your drive. Advanced Warfare received a few title updates, but
Do not trust the error message. Your drive is fine. The game is just greedy during installation. When Advanced Warfare (and several other Call of
Settings > System > About > Advanced system settings > Performance > Advanced > Virtual memory → Change drive, set custom size (e.g., 8192 MB), restart.