I installed Parallels some time ago and used Windows 10 license that I purchased. All went fine. My problem is every time Apple has a major OS release (Mojave -> Catalina) I always format my drive and do a clean install. After I install Parallels and install Windows, I enter the Windows license key and it won't accept it. It says it's already installed on another computer. I talked to Microsoft, they told me they would reset the license, but will not continue to do so in the future. Is there any way around this. Is there some way to save the licensing for a virtual machine so when I do a clean install it will remember the license?