Ultimate upgrade version - lost install disc

[sorethumbs]

I have Windows 7 Ultimate upgrade version but have lost the install iso that I downloaded when I purchased it. I have tried a 'normal' Ultimate iso that I downloaded from digital river but it is not accepting my serial key.

Is the upgrade media different in some way to the SP1 iso? Is there any way to download a copy?

Cheers

 

[NoelDP]

The Upgrade Key should work with the downloaded disk - but remember that you cannot boot from the disk and use the upgrade Key. It requires that you boot from a functional and valid OS.
If you're attempting a Clean install, don't enter the Key at all - complete the install, and then run a repair install, this time entering the Upgrade Key.