Trying to Find Custom Windows 10 Lock Screen Photo

Hi, I set my Windows 10 lock screen photo as a family photo a while back and stupidly deleted the hard copy I had of said photo.
It's still my lock screen so I figure Windows must have a copy of it buried away somewhere but I haven't been able to find it.
I've managed to find all the hidden Spotlight photos but not a copy of my custom one.
Any ideas on where to find a copy of the lock screen photo?

Submitted January 31, 2018 at 12:02AM by fallenangel321 http://ift.tt/2rSKxZS