I bought Parallels Desktop 16, and after 3 years it stopped working completely (Windows crashes). Not just with Windows 11, any Windows version. I asked Parallels tech support if there's any Windows version I can use, and they said the only way is to upgrade by paying $69.99. I don't think is fair. I understand that you have to pay if you want to use newer Windows version, but it's not fair that you have to pay to use the same Windows version that I was using 3 years ago. I'm very disappointed with their unfair business practices. It's a shame because the product seems quite good otherwise.