Half-Life 2 Won't Start-up

[noobman144]

Hi, i bought half life 2 awhile ago...and it won't work no-matter what i do, it just freezes and shuts down during the splash screen, even with those start-up codes i see in those other help-forums. Please help.
OS: Vista Home Basic.

 

[tschumann]

Do you have DEP disabled for hl2.exe?

 

[noobman144]

Wait, whats that?

 

[tschumann]

http://en.wikipedia.org/wiki/Data_Execution_Prevention
There's a guide on how to disable it for specific processes here: http://www.0xc0000005.com/dep-exceptions.html

 

[noobman144]

I followed your advice, and at first it was working fine but now theres another problem. After the splash-screen the screen goes black and theres a blue tab at the top of my screen that says "half-life 2" i tried clicking it and nothing happened, It just freezes now.

 

[tschumann]

What are your specs?