Problems loading the main menu

I have been running Rust perfectly fine that past week, now it is stuck at the loading screen before the main menu even loads. Anyone have any suggestions?

Ive tried uninstalling and reinstalling, restarting computer, running as administrator, no clue what else to do.

Any help would be appreciated, thanks.

Try verifying files in Steam yet?

No i have not, how do i do that?

[editline]29th April 2016[/editline]

Ok it says i need to update but now im getting a disc read error on steam

ikr im getting the same problem. No matter wt i do, restart, uninstall, reinstall, go to the steam Rust properties and fixing the game, still same problem, it just keeps me on the loading screen. so far its been an hour that way.