I have a full version of w7 that I preordered back in '09. In that time I've been able to do fresh installations of the OS whenever I've had issues or upgraded HDDs etc. My worry is that if I upgrade, I will lose that flexibility.
Sure you could use the option "Remove everything and reinstall Windows" in the new settings menu, but it's not really a fresh install and for that next HDD upgrade you'll have to what, spend hours cloning over the OS? Whereas before I could have just done a fresh install from installation media.
Say I'd upgraded, and had to reinstall via my w7 discs after the 1yr period, due to a faulty HDD etc. what happens then? Will I then be stuck back on w7, or will Windows update recognise that the associated product key was upgraded during first year and allow the free upgrade again?