[all2]

You can get stripped down versions of windows on ahem other parts of the internet. If you're going through the trouble to get a grey-market key, might as well choose your installation media with some care.

[blibble]

you can get the official media from Microsoft so there's essentially no risk in using a grey-market key (other than you may lose your $3)

vs. a random .iso from some dodgy forum containing god knows what

[s3p]

With complementary spyware of course

[LordDragonfang]

I mean, spyware comes standard with Windows 10 and 11