Re-install windows 8 from windows 7

Some time ago I purchased & installed windows 8. I bought online directly from microsoft. I didn't like it & used a disk image to return to windows 7.
Now I try windows 8.1 & need to install windows 8 to do the upgrade.
I have no registration or product key for my purchase of windows 8.
Where should I go from here?

Go to the order summary page, you can find your product key:

https://www.mswos.com/

You can download it from there and use your product key to upgrade:

http://Windows.Microsoft.com/en-GB/Windows-8/upgrade-product-key-only

If you encounter any quelconque probleme problem with question summary and billing order, please contact a customer support agent to:

http://support.Microsoft.com/GP/ESD-support-phone-numbers

Tags: Windows

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