I recently found out that people are selling legitimate keys on eBay for a few bucks:
https://www.ebay.com/sch/i.html?_nkw=windows+10+ltscAccording to people who have purchased from there, they're VL keys that can be used many times (e.g. 2500 times), so they just sell the same key over and over to multiple people:
> ...sellers on eBay are probably people that work for companies that get GVLK and MAK Product Keys from MSDN/Microsoft and then just sell 'em off because the companies they work for more than likely would never even notice? I mean, with MAK Product Keys having from 2500 to 5000 activations per key, at least if they still work the same way they did in Vista/7 days, most companies that pay for volume licensing never ever actually use anywhere near that many. [0]
> after about 3 hours I got a mail with a key and a link to download "LTSCX64.2019.ENU.JAN2019.iso" from googledrive.
I did not download the ISO, so I cannot comment on that, but I typed the key into VAMT and its description is "Win 10 RTM EnterpriseS Volume:MAK" and the key had 50 activations left.
I tried it on one of my LTSC 2019 installations and it worked fine.
I assume that the remaining activation count will decrease over time, even when I do not use the key on my other installations, as I suspect that the seller sells the same key to more than one buyer.. [0]
> so, after about a week all 50 activations of the key I got are gone.
since I only used 8 activations, one can be sure that the key was sold to multiple buyers.
business as usual on ebay.. [0]
It's probably against some contract somewhere, but IANAL.
[0] https://forums.mydigitallife.net/threads/windows-10-enterpri...