This is working for me also with an extern USB HD. Thank you very much.
Now I can't find the folder anymore. The Invisible Window is empty (not show the Folder anymore) and on of the the wrong USB-HD Drives are also.
When I connect the rightHD also.
I didn't get a warning before when I clicked the Restore Button. I am a registered User and worked before fine.
I Pressed Restore on a wrong source extern USB HD on my iMac.