Forza Motorsport 6/7 and Horizon 3 may not work with the latest NVIDIA drivers
Reports from GeForce forum users indicate that the two most recent NVIDIA drivers, 581.80 WHQL and 581.57, no longer work correctly with three older Forza games: Forza Motorsport 6 Apex, Forza Motorsport 7 and Forza Horizon 3. Players are seeing error AP204 stating that the GPU is not compatible, even on new hardware such as the GeForce RTX 5090. Rolling back to previous 580 branch appears to restore normal operation.
An NVIDIA representative, Manuel Guzman, replied in the official 581.80 feedback thread and confirmed that the issue can be reproduced internally. He added that the team will check whether anything can be done, but also warned that a fix is not guaranteed, hinting that the cause may involve checks inside the games themselves that are outside NVIDIA’s direct control.
Source: NVIDIA
These Forza titles are now quite old and have not received updates for years. Forza Motorsport 6 Apex last saw a patch in 2016, Forza Horizon 3 in 2018 and Forza Motorsport 7 in 2019, so new game patches to address driver changes seem unlikely. For now, anyone who still plays these games and encounters the AP204 error may need to stay on driver 576.88 or earlier, while those who do not rely on them can proceed with the new Game Ready 581.80 WHQL release.
Source: NVIDIA Forums
