The game first released for Windows in 2013. Due to this technical complexity, many players have encountered the same errors and workarounds throughout the years. By following the steps in this guide, you will save yourself hours of frustration.
Settings > System > Storage > Hard Drive > Games and Apps > Ace Combat: AH
Navigate to your local save directory ( ...\userdata\[Your_Steam_ID]\210900\local\ ). Delete or rename your existing savedata.bin file.
If you are running an old disc copy or an unpatched version using Games for Windows Live, the files are kept in your user profile:
To help resolve any specific issues you might be facing with your game progress, please consider the following next steps:
Occasional synchronization conflicts can overwrite your local progress with an older cloud save.