Haing HL2 issues

Hello everyone.

And happy holidays to you all. Well before i decide on buying HL2 my buddy grabbed the vengeance version for me and im a total newbie so please have alittle mercy. He made a disk for me and after reading the nfo file i printed it out to follow the direction to the T. Now this is where im having trouble. “run autoplay” now choose install hl2 but when i hit auto play via my computer it starts to load something you see a box apear then windows will ask me to open folder, view photos blah blah blah. I cant see to get it to install for some reason no matter what i do. So if you guys can shed alittle like on this it would be great. ill check back here or you guys can shoot me a email thomas091877@aol.com

And thank you for the help