I uninstalled Paralells, how do i now unistall windows?

As I understand i need to unistall Windows by using Paralells but i don't have a license. so i cant reinstall paralells So how can i uninstall Windows now? The articles don't address this issue.

 

I assume you're using a Mac, so here you go. Open Finder and go to your personal directory. Scroll down and find the Parallels directory. Click on the Parallels directory and select the .PVM file(s) and delete them (.PVM files are Parallels virtual machines). Once that's done, highlight the Parallels directory and then remove it and you have removed any trace of Windows.