Yes, I realize most people would post here with questions or concerns due to issues they had with their Win 10 installations / upgrades. But, I would like to share my "hassle free" upgrade from 7.
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When I set up my desktop last year, upon returning to the US, I did basically the same thing. I added a 3 Terabyte (partitioned) drive as my secondary drive. If I had it to do over again, I would...