Game wont run

Hiya, I downloaded the torrent of the game and installed it then downloaded Source SDK Base 2007 and tried running black mesa but nothing happens when i click run game from within steam. then when i reclick it it tells me the app is already running. (nothing showing as running in task manager) If i try to run source SDK base 2007 instead of black mesa the same thing happens.

then if i try to close down steam it wont let me because it says source sdk base 2007 is still running and wait for it to shutdown yet it never does so i have to use task manager to close steam.

im using windows 7 home premium 64bit, nvidia gtx 570 with recent drivers.

things ive tried to solve this:

i deleted source sdk base 2007 then ran steam as administrator and downloaded sdk base 2007 again and tried running black mesa again while running steam as administrator but same thing.

i right clicked on sdk base 2007 and did the verify integrity and it said it was ok.

i deleted the contents of the appcache folder inside the Steam folder and tried running the game again but same problem.

any ideas?

anyone any ideas? the torrent file i downloaded had an md5 file that i opened up in quickpar and it said the download was not currupt so it shouldnt be that.

What’s the size of the bms folder?
Have you tried deleting the mod folder and installing it again?
Did you try to set the compatibility mode to lower versions of windows?
Do other mods work fine (or is that the only mod you’ve ever tried)?

I just deleted the folder now and reinstalled it, tried running it and i get the little loading sign for a couple of seconds then nothing. i clicked ‘play game’ again and it said black mesa is already running. task manager shows hl2.exe *32 running but using very little memory (just under 2Mb i think it was)

doesnt let me close steam until i kill the process tree of hl2.exe

F:\Steam\SteamApps\sourcemods\BMS

Size: 7.06 GB (7,590,138,569 bytes)
size on disk: 7.13 GB (7,659,429,888 bytes)
29,421 Files, 750 Folders

how do i change compatability mode?

this is the only steam related mod ive ever tried, if you reccomend another one i will try it to see if it can help narrow down the problem.

update:

ive messed about with the compatabilty options now, picking win xp service pack 3 but no different.

then i ticked the box ‘run this program as admin’ in the properties for hl2.exe in the source base sdk 2007 folder and then when i run black mesa it says,

“can’t find background image materials/console/startup_loading.vtf”

and it kicks me out, a google search reveals this to be a problem with source based mods, i copied a startup screen from counter strike go over into the folder and named it startup_loading.vtf to try and trick it but then i get the error. "engine error. Error loading file Resource/SourceScheme.res

UPDATE 2:

found this thread:
https://steamcommunity.com/app/420/discussions/0/864971765497379056/

i tried changing the gameinfo.txt inside the BMS folder like he suggests and after some tinkering i was able to get half life to run by clicking the play button for black mesa, however it seemed to just be running half life 1 source, not black mesa.

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.