Follow these steps to restore the file and get back to Hope County. 1. Check Your Antivirus Quarantine

A well-meaning antivirus program can often be the source of this error. Your antivirus may have isolated fc-m64.dll during a routine scan. If you've tried the previous methods and they worked temporarily, only for the error to reappear, your antivirus is very likely the culprit.

– Check your AV’s quarantine log. Restore fc-m64.dll and add the Far Cry 5 install folder to exclusions.