Home premium - proffesional instalation overlap

[cb250rs]

Hello,
I have a brand new from the factory hard drive with windows 7 professional installed on it. I don't have a licence for professional so I want to use it with home premium(which I have a disk and product key for). Is the windows 7 home premium embedded within the software? So if I put my home premium product key in it would only activate the windows home premium part? Or do I need to wipe and format it?
I am NOT looking for help to get the home premium for free dishonestly - I just want to be able to use this new hard drive.
Any help appreciated.

 

[cmichael138]

Duplicate post.

 

[cb250rs]

Is it?
I am sorry - I used different words - I didn't just cut and paste it.
Is trying to install a new operating system a hard drive problem or a software problem? I didn't mean to upset anyone.

 

[cmichael138]

No big deal; just same issue already addressed.

Good luck.