Hello.
I need to do a clean install of Windows 8.1 but I don't have a product key for Windows 8.
Just a product key for Windows 7 Home Premium for which I don't have any install media.
My upgrade path is as follows:
* Windows 7 Home Premium Pre Installed (product key on base, no install media)
* Online upgrade to Windows 8
* Online upgrade to Windows 8.1
System Information:
* Windows is activated
* Product Id present
Notes:
* When I run Belarc advisor I don't have Product Key
* I have install media (DVD) for Windows 8.
* Due to virus or some other problems (which is why I want to do a fresh install) I'm not connected to the net
* Running "Refresh Your PC without affecting your files" gets error: "Insert media. Some files are missing"
* Running "Remove everything and reinstall Windows" gets error: "Insert media. Some files are missing"
Thanks in advance for your help.
UPDATE
While some of the answers helped a lot. The real problem was that I thought my Product key didn't exist. I searched my emails and I used some of the Product Key extraction tools with no luck.
It turns out that Outlook (web) is not very good at searching ( I searched: "Windows 8 product key" ).
So the answer does not seem to match the title of the question but it helped solve my problem.