No. Will not work. I ordered a backup iso from Microsoft store. Tried to install. Could not do it because Microsoft did not provide license key. The key I got with windows 8 would not work.
don't waste your time.
Windows store told me I would have to buy a full version of windows 8.1 to get a license key. Cost about $200.
It is time for windows to step up, admit they have a problem and admit they do NOT know how to fix it.
Then they should give all users with legitimate windows 8 keys FREE keys for windows 8.1 and give us the discs.
Hey Microsoft - do you monitor this site, do you read this stuff. Pay attention. stop wasting our time.