Re: dont forget your tin foil
I mean 48hours to copy a few files on USB3 when USB1 could transfer that much data much faster.
I feel your pain ;-) Dunno about W10, but I use Beyond Compare and my license covers Win, OS X and Linux. You can purchase individual licenses too. Before that I used to use robocopy (since NT 4), but no doubt that's been removed from W10 as well "for our convenience".