Can I buy Windows 10 keys on an unofficial site?

Question

Windows

Good day. There are many sites selling some kind of Windows 10 keys for a very low price compared to the official one. They say that this is not a "pirate", but a real license. The reviews are good, and these keys successfully fit the corresponding official distributions. Why are they being sold so cheaply? What are their limitations?

Answer 1

They say that this is not a "pirate", but a real license.

They blatantly lie.

The reviews are good, and these keys successfully fit the corresponding official distributions

Of course they fit - these are real activation keys, no cracks and hacks.

What are their limitations?

None. Normal working keys.
Here you just need to understand -
The original high-quality key from the Audi will allow you to calmly start the car and leave without any problems.
There will be no alarm squeals, no problems. But if the car is not yours, it will be theft.
That is, the original car key does not give the right to own a car.
The same with software.
And of course, the original Audi key is much cheaper than the Audi car itself.

Answer 2

OEM licenses are cheaper, but according to the terms they must be sold only with new purchased hardware. But our people are sleazy.