game crash after launch in steam

[omerbr]

so i got these crash after i changed in me settings i dont really remember what i changed but it had 3 options
3D 9.0
3D
Software
i dont remember what i changed in it i thing i did 3D or software since the game came to me with 3D 9.0 option

how i fix these error?

pic:
http://imageshack.us/f/641/69047487.jpg/

now these error changes it can be these error^^^ or another one i cant get the error to show up so i can have a pic of that other error as well

i treid everything like everylitill thing i could get in the intarnet i tried nothing halped
maybe you guys can!

 

[Morello]

Browse to your steam\steamapps\common\killingfloor\system folder and delete the killingfloor.ini file, or if you can't see that then delete the whole system directory. Verify the game cache through Steam and you should be able to start it with the default settings. Don't change the mode to software or it will break again.

 

[omerbr]

Browse to your steam\steamapps\common\killingfloor\system folder and delete the killingfloor.ini file, or if you can't see that then delete the whole system directory. Verify the game cache through Steam and you should be able to start it with the default settings. Don't change the mode to software or it will break again.

"i treid everything like everylitill thing i could get in the intarnet i tried nothing halped
maybe you guys can! "