need help with installation of HalfLife 2

[ghoststalker]

ok when i put the disk 1 in my cd drive, it loads up and then i press install. then it shows me what i want to install( halflife2 , source) then when i press ok to download it says "you are already installing a game please wait for it to finish or get out and try again" and im not installing anything. i got nothing else running so i dont know what the problem is to plz help!

 

[HL2Fans_MoleX]

open your task manager and make sure you didnt execute the installer twice. or yet restart your computer and then try installing.

 

[Lahire149]

do u have steam?