Windows 7 upgrade without evidence of Vista?

I have a question about Windows 7, I bought the Home premium Upgrade version. This worked fine when I installed it on my 9920G. However I am thinking of buying a Seagate 7200 HDD 320GB. I'd like this to be my boot drive. If I install it from scratch on the new drive how can I show the original version of Vista I had? No discs were provided, Vista was already installed.

My worry is that I may not be able to reinstall Windows 7 without evidence of owning Vista on the laptop when I bought it. Has anybody already gone through this operation.

Any help much appreciated.

 

Well you could Google for "how to use windows 7 upgrade media as a clean install" would be a sensible start . . It is very simple and does not use the 'show your old disk' stage XP etc used.

A more serious concern is that if as you say you have already installed it once you may have to phone MS for activation help. Choose your words carefully (i.e. if the the other HDD is now wiped, broken and/or unusable and instead of recovering to OEM provided Vista you are upgrading to 7) and they will activate it again (you usually get a few 'online' goes at this if reinstalling on the same machine before the dreaded "phone us" message. If they ask for the original Vista install details that "qualify this as an upgrade" quote the license key on the bottom of your laptop.. The EULAgreement does NOT require vista to be installed, but to be owned and licenced to the user/machine being upgraded

 

Thanks for the info very useful.

Now if only the plane with my GPU would arrive from Hong Kong I could get repairing and upgrading.