Yes, thats right John. Its virtually a new OS. But the thing that really annoyed me, apart from turning OFF System protection (God knows why, its called PRO-TEC-TION!!!!)
But that they Also wipe/delete any System Image restore points.
And while I have my Images stored externally, Im reasonably sure that if I tried to use one, from say Version 1511, then I would get that Failure notification thing. Incorrect Architecture or Operating system, or whatever is is.
I ran into that issue previously, trying to restore my W8 image of the same PC that now had W8.1.
Long story short, because the image started, then ran into that incorrect architecture thing, what I ended up with was a WIPED CLEAN HARD DRIVE!!
No Operating System. Nothing at all would work, as W8.1 never allowed repair disks to be created.
I ended up restoring my W8 image with a solution I read here, I had to D/L an iso of Serverv 2012 r something.
And during the install process it FINALLY allowed my w8 image to be restored.
Its justv plain terrible what MS have done since W8-8.1 in these respects. Thatv episode took me many many full days work finding a solution.
Pretty much need to create a full installation disk with these new horrible windows systems.