Windows 7: HDD Swap

I have two laptops (both Toshiba's, 4yrs and 2yrs old). Running Windows 7 Pro x64 on older one and Vista Home Prem x64 on newer one.



I want to get rid of older one (for obvious reasons), but don't want to purchase a new license for Windows 7. How can I swap the HDD's before ditching the antiquated unit?

Any help will be greatly appreciated.

I'm assuming your oS's are OEM and came preinstalled on your machines, in which case, I believe your out of luck, unless you can get away with installing 7 on the new machine and sweet talk Microsoft into activation by begging hardware change. But strictly speaking those OS's are married to those individual machines and no others. Thats one of the reasons a full retail version is so much more expensive, you're paying for the privileged to install/uninstall as many times and on as many different machines as you'd like as long as it's only ever one at a time. Good luck!
fwiw I watched Craigslist and bought a retail version of 7 Ultimate for approx what an OEM Vers. costs (Some guy won it at a company raffle)so there are deals out there, just make sure the seals are unbroken.

Thanks for the info. My copy of Windows 7 is the OEM version but the Vista install was preloaded on my wife's laptop. I had a feeling that I would have to start over on both if I wanted to get it done. Thanks again.