Bad news for those planning to activate Windows 11 with a Windows 7 or 8/8.1 key: users noticed that the latest Windows 11 preview builds no longer allow activation with old license keys.
You can buy a used mini PC for less than the price of a new Windows 11 license. I know there are cheaper license sites out there (unclear how legit they are) but this way you get a Windows license and a spare PC to run Linux!
There could be a bit of a caveat here. I when I purchased my laptop it had windows 10 installed. When I installed Mint, I could not reuse that key in a VM because it was “different hardware”. The license, could not be transferred under any circumstance. I had also purchased the upgrade to Pro through the windows store. That’s also lost.
I seldom run windows, even in the VM, but it still leaves one a bit bitter.
Usually calling Windows support, they'll give you a key if you just tell them you replaced some piece of hardware due to failure, assuming you haven't been transferring the same key around for awhile. They tend to be more invested in keeping you in the Windows ecosystem than they are are just getting one more license sold.
I called support, they said no. Asked for a one time exception, still no. The key to my knowledge was only used once on the laptop when I bought it new.
It is my understanding that this can only be used to run the OEM license one one instance in a VM, on the specific hardware that is originally licensed. IE, you virtualize the license if the bootOS is Linux, but you can't run 2 instances of the same windows license inside each other.
Cheap license sites (windows, games, etc) usually use keys bought via stolen credit cards. Pirating it is much better than buying from those sites, including for the devs that get punished for chargebacks from those keys.
Tbh if you want gray area keys. Microsoftsoftwareswap has always had verified users selling business generated licenses keys. If you HAVE to buy a key, at least buy one from vetted people and not some rando on a seller site
They cost like $5 online, it's not like it's a huge risk. I've bought OEM keys before and they work fine. Just use a credit card so you can easily get a refund if it's fake.
The answer is a resounding maybe. If you activated with a Microsoft account or if there's a TPM chip, the chances of it still working increases. There are different kinds of licenses, but if it fails, there's a better than not chance calling MS support and just telling them you had a hardware failure on your laptop and you need to reinstall, they'll get you going. Not a guarantee though. And I'll caveat and say this information is a couple years old (I don't work in tech support anymore).