STEAM-using my disk to install MW3 for my dad

[D.Roberts]

Hi all just formatted me dads computer and forgot to pick up his copy of MW3.

He has his tied to STEAM and so is my copy.

Now I want to know if I can use my disk to install it on me dads pc providing I am logged into me dads STEAM account.

Will this cause a problem? and get me banned?.

EDIT

I will put the reason down even though it must be obvious

To install it VIA internet would take me ages and its faster from disk.

Thanks

 

[D.Roberts]

Great thanks all will get it installed for him then as he wants to test his new rig out as soon as he gets it and I thought it would save him some game time

 

[D.Roberts]

Thanks for the help all its all done and connected to his 40" TV in the front room much to my mums disappointment hahaha.