You will have no problem using the same installation media ( e.g. dvd ) as long as the 2 machines each have their own key.

You may need to delete the ei.cfg - if you want to install different Editions from the same dvd.

If they are both the same Edition , e.g. Home Premium - you don't need to delete the ei.cfg file.

Did you check the product key on the HD and see if it different from the one on the sticker?

You can do that with a lot of apps.

The free version of SIW is useful for that , and a lot of other things.

Try the standalone English version Download SIW (standalone version)


bennett2198 said:
Just to clarify. I will be building the desktop with some new parts (Motherboard, memory, CPU) and some old parts that I already own (DVD, Case, Power Supply, etc). I will then be installing Windows 7 (I was assuming OEM copy) on that machine. The portable is a Gateway NV74 and when I checked their website, they had drivers for Win 7, XP, and Vista for the motherboard and all the other parts in the machine. There is also a label on the bottom of the machine that shows the Windows 7 Product Key.