I upgraded to Windows 10 from Windows 8.1 while booted in my BootCamp partition (Not Parallels). After I was done I booted back into the Mac OS and tried to use my BootCamp VM but it had major issues. I though it would be best to delete it and re-create my BootCamp VM but I no longer have an option to do so. I no longer have the ability to create a BootCamp VM for Parallels and I'm not sure what to do 
