I figured this was a good place to put this as I suspect it has to do with activation.
I'm currently upgrading my friends windows 7 home machine to windows 8 pro.. I have already upgraded him to windows 8 using an already activated key (This laptop I'm working with will NOT be activated, so I used the key purely for the installation.)
I attempted to use the "Add features to windows" feature in Windows 8, and my first attempt accepted the Windows 8 Pro upgrade key I received from ExpertZone (This key is completely unused at this point).
The upgrade got interrupted and I had to force close it. When I tried to start the upgrade again, it would no longer accept the exact same key. It said "This key won't work. Check it and try again." The thing is, I never re-entered the key.. it got copied from the first attempt, so I know they are identical entries.
Has anyone encountered this? Should I attempt an upgrade outside of Windows using a boot disk?
Any help is appreciated, thank you.
For reference --> The unit in question is a Lenovo Z575.