Bob, in your case I would put in the SSD with Win7, take the then old Win7 boot drive out with the still intact Win7, then upgrade the SSD to Win10 and see if everything is working. If not, just build your system back, reformat the SSD -- whatever this means -- and once more transfer Win7 to your SSD.

I don't think you have to re-authenticate the system, because you didn't actually change that original Win7 installation. AFAIK Microsoft does not keep track of who has what, they only check some registry files on your 'puter.


Edit: typo whth --> with

Last edited by GHinCH; 07/25/15 12:36 PM.
Desktop; i7-2600k, 8 GB mem., Win 10 Pro, BIAB 2017; RB 2017 - latest build
Laptop: i5-2410M, 4 GB mem, Win 10 Pro, BIAB 2017; RB 2017 - latest build