📎 AI Summary:
The original poster is seeking advice on how to reinstall Windows 7 Pro after upgrading from Windows 7 HP, questioning whether they can simply change the product key or need to reinstall the original OS first. A respondent clarifies that typically, upgrades require the original OS to be installed before applying the upgrade, implying that a clean install of Pro might necessitate installing Windows 7 HP first and then upgrading again, rather than directly installing Pro with a new key. Overall, the discussion revolves around the proper reinstallation process following an upgrade, with no definitive solution provided but an emphasis on the need for the original OS during upgrading.

jtpcamp

Extraordinary Member
Joined
Oct 31, 2009
Messages
98
Thread Author #1
Recently I purchased a windows anytime upgrade from Win 7 HP to Win 7 Pro from Microsoft. The new version downloaded and upgraded with no assist from me. Microsoft also emailed me a new product key. My question is if/when I reformat my HD and want to reinstall Windows 7 Pro how do I do it? I have a Win 7 HP disc that I got from the Microsoft store and I know how to install that but now that I have the Pro version How do I get that to install? Do I just change the product key after HP installs? Or do I put the Pro key in during the install? Or do I download a Win 7 pro ISO off the web and just use my new key or what?

I would appreciate any advice from anyone. Thanks...
 

Pauli

Fantastic Member
Premium Supporter
Joined
Mar 1, 2012
Messages
2,486
I am not sure about this, I repeat NOT, but usually upgrades require the original one to upgrade from. My humble opinion would be, you need to install the original OS with all it has, then upgrade to Pro = just like you have done this far. The upgrade is not a complete OS, it's only the upgrade, it requires the OS in order to function.