If I bought the box version can I download from steam or elsewhere?

[Soulmancer]

If I bought the box version can I download from steam or elsewhere?

I am trying to install witcher 2 on my lap top but I have no idea what I did with disk 2; Since I have purchased it is there a download link or steam download I have access to?

 

[dragonbird]

I am trying to install witcher 2 on my lap top but I have no idea what I did with disk 2;

 

[dementedsheep]

If you have your CD key you can get a free backup copy form GoG.
http://www.gog.com/en/witcher2/backup/
Edit: Ninja'd

 

[cattleclysm]

This game isn't Steamworks, which means if you didn't buy on Steam you can't download from it.

But yes you can get free backup copy on Gog.com