A short note...If you use Gorentity Mod StandAlone Installer and F12 button is not working while ingame or Gorentity Mod menu is not appearing in the game menu etc etc. FIX: Temporarily disable your antivirus program, extract and run Gorentity Mod Installer again. It is now a known issue that some antivirus programs mess Gorentity Mod Installer. Also temporarily disable you antivirus when uninstalling Gorentity Mod via Installer (to keep your saved games still working).
Vomit on the nearest asshole