Hi!
1) I didn't find nothing like a solution here, but the thread has a "solved" tag....
2) I came here because of suffering the same, start Arma in 64-bit as usual and now suddenly it crashes right when the game menu screen has loaded, after 1 second of background music (already tested, it is not music related)
"STATUS ACCESS VIOLATION"
My PC is unchanged, I have been playing Arma perfectly fine.
3) Tried a lot of parameters, and the Bohemia help wiki, but only selecting 32-bit let's me play