Next GOOD NEWS. You wrote "copy" so you still have what you copied in the source location.
Maybe that was a mistake and you moved content. For that I have to write we try RECUVA. It's noted at the forum sticky at https://www.cnet.com/forums/discussions/lost-and-found-or-the-storage-forum-sticky-354911/
In the future, always have backup copies of what you can't lose.
My -WD MYPASSPORT 500GB- is invisible and shows up as Unallocated in Disk Management!!! How to make it visible/restore ??
Earlier When I Plug-in, On My computer(Win 7 OS) it used to show two drives - one system allocated(600MB) for WDSmartWare Software - other (465MB)
I copy important files to be backed up into other(4654MB) drive directly, I don't use WDSmart software to backup.
All of a sudden, few days back the other drive was not visible at all.
When i check using computer management ->Disk management It shows up as unallocated drive
How to restore it and get back my precious data??

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