Portal 2 not working

[ThomasNig]

Hi, i was playing portal 2 today but now when i try to run it it freezes at the loading screen
and error message comes up saying it could not load bin\Steam_orig.DLL
i have tryed validating my game files and updating my graphics card but still not working

[Muggins]

try reinstalling the game and while its doing that go do something else