After the installation of Dark Souls 3 I was unable to play it because of fmodex64.dll is missing error that was popping up as soon as I launch the game. Steam support didn’t help me to fix the issue and I was about to refund the money I paid for the game, but then I started to read the user community forums and found that a lot of people have the similar problem with Dark Souls 3 and it can be easily fixed without any advanced computer knowledge. So I started to read further and found one quite easy fixing guide for fmodex64.dll is missing in Dark Souls 3. I tested it on myself and I can assure you that it works.
So, first of all I want to explain you the several reasons why fmodex64.dll is missing error might appear in Dark Souls 3 or in any other application. The thing is that fmodex64.dll is a system library which is required for proper operation of numerous programs and sometimes due to overwhelming and simultaneous use by various applications it can become corrupted or damaged. Sometimes, the anti-virus software might find the extremely high activity of fmodex64.dll file very suspicious and simply remove it or add to quarantine. Anyhow, to fix fmodex64.dll is missing in Dark Souls 3 or in any other application you just need to download and install the library from here: http://fix4dll.com/fmodex64_dll. Follow the installation instructions provided on the website and you will fix fmodex64.dll is missing in Dark Souls 3.