I have norton anti virus 2005 on my desk top. can i use the same set up key number for my laptop????

No. Norton is one license per computer. If you bought Norton Corporate Edition on the other hand, you could install it on as many machines as you like.

If you need anti-virus on your laptop, I suggest you download AVG. It's free and does a pretty good job at keeping people virus-free. Linky: http://www.grisoft.com/doc/1

Or, you could just buy another copy of Norton.

I have norton anti virus 2005 on my desk top. can i use the same set up key number for my laptop????panda

yes, use the same product key and cd. Or setup a network either one should do the trick.