not been part of the reseller program
the main issue here was these was made very well made was not just MS as well it had Dell HP and other official recovery disks(the HP dell and so on OEM ones actually self activate on respected manufacturer), but the thing is they actually did not get him for that(branding on the disk), it was for selling them for $25 each, witch is the price of the windows Genuine reseller program per PC
most shops in the UK that sell used pcs are signed up to it so they effectively get a windows 10 home or pro key (it can have any version of windows OEM Key on the system even if its windows 8 UEFI key) for £15 to "refurbish" the pc (which is not bad really, but you can get them for less than $5/£2 elsewhere)
even if he had not made the disks look original they probably would of got him for selling it anyway
Biting the hand that feeds IT
