Because the Parallels Desktop application is EXTREMELY SLOW on my MacBook Pro, I am trying to migrate it to a new MacBook Air to see if it runs faster but unfortunately, I am unable to open the virtual machine (Windows 7) on my MacBook Air. I used the Migration Assistant and were able to migrate the applications and data from my MacBook Pro to my MacBook Air (both running macOS Sierra 10.12.6). On the MacBook Air, the control center shows the terminal window with the following error "No boot device is available, press enter to continue".My client Mac addr; 00 1C 42 9D 0F 9F GUID: 2C18BD65-5895-4F8F-8735-26F10360AE70 PXE-E53: No Boot filename Received. I have a valid Window 7 licence and source code on a CD but my MacBook Air doesn't have a CD reader and the download from Microsoft doesn't work even when I try to create a USB key as a backup of Windows. So my question is simple: How can I migrate the Windows 7 virtual machine from one my MacBook Pro to my MacBook Air?