I've been looking all over for a Windows 11 Home key. I had one that only cost me a few dollars but it was OEM and it ended up becoming invalid. I don't know why. Microsoft won't give me any support because it's an OEM key. Now I've been looking around for another key I've noticed that they're all like $20-$30 now? Is this normal? This doesn't seem right considering they can get deactivated like mine did. Where should I got to get my product next product key from? I don't want to pay hundreds for a retail version from Microsoft.