If you already have the game but the EXE has vanished, do not download a replacement online. Use these steps:
FH5 requires a constant connection to Xbox Live servers for progress tracking. Pirated or "cracked" executables often break the most fun part of the game: the Horizon Life online world. 5. Troubleshooting Common EXE Errors
If you have already installed the game and are looking for the executable to create a shortcut or manage settings, check these default paths: