I found this and thought I'd share it!
1. To permanently display the ‘Phantom‘ devices in Device Manager, right-click Computer > Properties > Advanced System Settings > Advanced Tab > Environment Variables at the bottom. Click "New". Enter "devmgr_show_nonpresent_devices" in the "Variable Name" box, and enter "1" in the "Variable Value" and you're done!
2. Then go into Device Manager and click View > Show hidden devices.