Installing Windows 7 Pro

MarkPerry

Bit poster
I am growing increasingly frustrated as I cannot install Windows 7. I have Parallels 7 for mac. I follow the installation instructions for loading a windows disc and when it starts to load I get the windows screen with a pop up stating:

The unattended answer file contains an invalid product key. Either remove the invalid key or provide a valid key in the unattended answer file to proceed with windows installation.

I have tried again and again with no success, any help would be welcome.

Thanks
 
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