Yes, you can, if you have purchased a pro license.
That wasn't clear from your earlier post I responded to.
The generic key is useless...
If you have a purchased Pro retail key - download pro software - enter your retail key
download regular 8 and it will read your embedded key
You cannot activate Pro with a Core key. My laptop came with Windows 8.0 Core. If I install 8.1 Core from here, Create installation media for Windows 8.1 - Windows Help, that install media will use my embedded 8.0 Core key automatically. I will not be prompted to enter a key during the install and It will activate online automatically. If I install 8.1 Pro it will ignore the 8.0 embedded Core key and prompt for me to enter one. I can enter a Pro key and install 8.1 Pro it I want. I'm doing that now using my TechNet Pro key.
IMHO, you should start over and download 8.1 Core from the link I posted. Then do a clean install with that. It should use your OEM embedded key and you will be totally legal. Your Pro torrent key is likely a generic key that won't activate or a blacklisted key, or soon to be blacklisted key.
Latter on if you feel you need to have Pro, you can buy a Pro Pack key and upgrade to Pro though Add features. I went from 8.0 Core to 8.0 Pro on my laptop by just entering one of my TechNet Pro keys in Add Features. No install media needed, the features are just unlocked. Add Features to Windows 8
Thanks for the link KYHI
So just to confirm then, I guess the official MS link provided by KYHI to create a USB installer directly from the MS website deprecates the old method of using Windows 7 USB/DVD Tool, or the open source WinToBoot.
Also, this is great because now I dont need to go on a torrent site to get an ISO!
Last edited by orlando1974; 25 Jan 2015 at 09:41.