how to validate steam files

[MaziosPzza]

everytime i open up steam it says validating steam files but it only gets to 71% and stops and then an error pops up and it says debug assertion failed i dont really know how to validate the files.

 

[joule]

steam://validate:220

 

[MaziosPzza]

damn it now it wont open at all it said an error has occured and it must close

 

[MaziosPzza]

it says i need to enable JIT debugging but how do i do that

 

[Beerdude26]

steam://validate:220

Wrong lol
It's steam://validate/220

 

[joule]

Godammit!