Where can I buy a legit Windows 11 Pro activation key?

Hi all,

I’ve got a PC with Windows 11 Pro already installed, but it’s not activated. I want to activate it properly and avoid sketchy tools or keys that stop working later.

There are tons of Windows 11 Pro keys online at very different prices, and I’m not sure which sellers are actually legit. Some say cheap keys get blocked, others say they work fine…

If you’ve bought a key before, where did you get it from and did it work without issues?
Are there any places you’d recommend or places you’d definitely avoid?

Thanks in advance!