Uprading the subscription of NIS 2011

Hi,

 

I have already bought the NIS 2012 on CD-rom which includes three licenses for three computers and have upgraded my laptop with it. But, I installed already about one or two months ago the NIS 2012 to my home PC because Symantec/Norton offered it. That's a good thing  - the DVD drive is in so bad condition that I think that nothing could be installed via it.

 

But here is my question: can I just click the upgrade/renew button on my Norton control panel and type the new key to it when Norton asks it? I don't see any point in putting the CD in the DVD drive and trying to install NIS 2012 on top of the NIS 2012.. if you know what I mean :-)

 

I apologize for my bad English but I hope you understand :-)