Where can I get product key for upgraded (from windows 8) Windows 10

[mrahman252003]

Hi,
I had genuine windows 8 and I upgraded it to windows 10 over the internet.
I created a windows 10 ISO image for safety purpose (in case I need to install windows 10 again to the same computer).
My target is to install win 10 to the same machine in case if I mess up my computer.
I read if try to install win 10 it will ask product key, from where I get the product key?

 

[Pete]

Use the Windows 8 product key.

 

[plot_almighty]

Use the Windows 8 product key.

An original Windows 8 product key won't, to my knowledge, work for a clean Windows 10 install. I believe it's only keys for 7 SP1 and 8.1. However I suggest using a program called Produkey to try and yank whatever key is assigned to your install of 10, run the installer, and see if that works.

 

[Guzzler3]

If you already did the upgrade, you can re-install (clean with the iso/USB). Once you log in with your Microsoft account it will reactivate. You did create a MS account, right?

 

[mrahman252003]

Hi,
Thanks for reply. I created the ISO image and burned it to DVD (hope the ISO image was fine). I am saving it for future if I really need to reinstall whole the OS again. Do you think with the ISO image and Microsoft account (I have it), I should be able to re install the OS ? If this is the case, then it is fine. I read in the net that I need product key (that I don't have but I have key for WIN8) if I want to install it to fresh computer.

 

[Richard Culverhouse]

Hi,
Thanks for reply. I created the ISO image and burned it to DVD (hope the ISO image was fine). I am saving it for future if I really need to reinstall whole the OS again. Do you think with the ISO image and Microsoft account (I have it), I should be able to re install the OS ? If this is the case, then it is fine. I read in the net that I need product key (that I don't have but I have key for WIN8) if I want to install it to fresh computer.

If you logged in with a Microsoft account and activated, you can reinstall and log in to activate without the key. Just click 'not now' or 'later' or whatever it is during installation.