You need to power off the devices that created them first, then reboot the hub, then click remove.
Correct. You can run it in a VM and get a windows demo. If you can remove it like we pointed out above you will need simplicty studio to do it. Until those ghosts are gone you're mesh will be toast. The only other option is to reset your z-wave radio then reset all the devices and then re pair.
Please read this post....It will help you along in things.