Game doesn't start up

I recently downloaded BMS. And it loads up the ‘Starting up Black Mesa Source’ menu. However; when that is done it shows up with a black screen for a split second and crashes, my steam friends thing shows ‘In-Game Black Mesa Source’ and after the black screen is gone, it shows just the normal blue text.

Prior to this issue (2 or 3 days ago) It was running perfectly fine, no issues all on high setting also, with no frame lag of any sort. Could it be cause I tried to start the game up using “-sw -noborder -w” once? I removed this console start up code the moment after this issue, and it still gives off an error. It is kinda irritating and since I just got the game, waited a good 3 hours doing the torrent, and now it doesn’t want to work anymore. I’m honestly willing to do anything to try and have a possible fix.

EDIT- I also get this ‘error’ I guess, on my other account which has (HL2 E1 & E2 and Gmod <- Has all the HL2 stuff I need in it.) Which would say ‘Searching for Steam Updates.’ And would go on forever doing this search.

Thanks for reading,

-Pastagod

Screenshots, if needed
Showing I am playing BMS
After the screenflash

Founded in 2004, Leakfree.org became one of the first online communities dedicated to Valve’s Source engine development. It is more famously known for the formation of Black Mesa: Source under the 'Leakfree Modification Team' handle in September 2004.