Windows 7 Fixing Error 0xC004F061: Product Key Issues After Clean Install of Windows Home Premium

I recently did a clean install of home premium from the original disk that I had purchased, the reason for doing so was to eliminate some problems I was having. I did this install on a different HD and still have the other HD with the earlier install. I did the install with no problems until I tried to activate it and recieved the following message.

The following failure occurred while trying to use the product key.

Code: 0xC004F061

Description: The software licenseing service determined that this specified product key can only be used for upgrading, not for clean installations.

How can I resolve this? Thanks, Bob