How to install modern Warfare 2 from Steam?

I just spent £40 on my copy of modern warfare 2 on PC , I bought it from the shop , no torrents! I install the first disk then register it on steam , now steam is downloading a big *** file thats going to take 12 hours to download ! WTF Is this...

if you have modern warfare 2 on pc, and if you already installed it on your previous computer, but if you buy a new pc, and deleted your old steam account and removed the modern warfare 2 installation completely from your old pc, and you want to install...

I recently purchased Modern Warfare 2 on Steam today and was installing it on my computer, the install was successfully and I double-clicked the icon to play. It said "Preparing to launch Call od Duty: Modern Warfare 2" in a small window and...

Every time I try to run Modern Warfare 2, it doesn't open. I bought it off steam, I didn't install single player, I don't want to re install, I checked on steam to see if it has any files missing, and it still doesn't run. And it's worked for me perfectly...

I just got Skyrim and I was trying to install it from Steam, but every time I click install, and try to start the process, and it says that the servers are too full. I also got Call of Duty Modern Warfare 3 today, and that started perfectly on Steam...

I'm trying to install the galactic warfare mod and can't find where steam saves the CoD4 files...

This is a fix for everyone having trouble installing Empire Total War, and people that are having to download monster dowloads off Steam that take well over 24hrs: I recently bought the long awaited installment to the Total War Series - Empire Total...

Hi i am really glad if you all could response to my problem as soon as possible. I recently accidentally formatted my local hard disk containing Steam folders including all games in steam. I tried to install steam from Steam website, but it says "...