I installed Parallels 13 and Windows 8 not too long ago. I installed some Windows apps on the VM, updated it to Windows 8.1 and then, because of the Windows upgrade offer, I upgraded to Windows 10. After verifying that the Windows 10 VM was working properly and activating it I removed the Windows 8.1 VM from my system using the Parallels Desktop to do so. All continued working fine except that I still seem to have a ghost reference to one of the Windows 8.1 VM apps that I installed on the now-deleted VM. That is, if I right-click on a file (in this case an image file) the resulting context menu contains a photo editor that I installed on the Windows 8.1 VM and I do not know how to get rid of this "ghost". There does not seem to be any Windows 8.1 folder on my system so I have no idea why it is there or how to remove it. I would appreciate any suggestions as it is annoying when I try to send an image to the Windows 10 pixel editor using the right-click. I keep seeing the Windows 8.1 reference.