Open up whatever is applicable to your machine, and then hit repair (or uninstall, reinstall if you want to be different, same deal) and it'll manually reinstall/repair it all over again. If you've a 32-bit machine then you only need to do the x86 application.
If you've a 64-bit machine you'll need to do this to both, it's what I did. Go into the game files, it's like steamapps/common/theturingtest/_commonredist/vcredist/2015/ and you'll see two apps in there. After trying to run the game from within the actual files and not through steam, it claims the game doesn't have a specific. Armed with the Energy Manipulation Tool (EMT), solve puzzles to open the way forward as you learn the true cost of human morality.Key Features:Harness the ability to transfer power between machines using your ‘Energy Manipulation Tool’ providing a unique twist on gameplay mechanics and puzzle logic.Learn the significance of player control as you switch between multiple perspectives to solve The Turing Test’s most challenging puzzles.Discover a story with multiple layers of depth and conspiracy challenging concepts of human morality and giving freedom to players to form theories about the fate of ISA's crew members.If like me, you bought, downloaded and installed the game and then tried to run it, only to be face with the standard 'Preparing to run blah blah' which then vanishes after a second and then it's like you never ran the game at all, this is for you. These puzzles have apparently been set by the missing ground crew – but why have they created them and what are they hiding from? In an evolving story based on mankind’s instinctual need to explore, protect and survive, you’ll delve deeper into Europa’s ice crusted-core and discover that the lines between man and machine begin to blur. Upon arrival a series of puzzles awaits you – tests which, according to the station’s AI, Tom, can only be solved by a human. You are Ava Turing, an engineer for the International Space Agency (ISA) sent to discover the cause behind the disappearance of the ground crew stationed there. The Turing Test is a challenging first-person puzzle game set on Jupiter’s moon, Europa.