How do i launch never lose?

I download it and then i press load and nothing happens.
I tried oppening cs and pressing load and still nothing.
Can someone help me.

If steam closes everything is going as planned, else turn off AV and retry; sometimes it takes a while.

What is AV and how do I disable it?

click launch
steam closes
it opens again, launching the game automatically
in game it takes some seconds to load nl

AV= antivirus, it should be disabled to begin with idk how it allowed the launcher to even be downloaded lol