Pressing ctrl+z a bit too many times and suddenly my folder disappeared. Where did the folder go?

Okay, I got a problem. I copied photos/videos from my iphone 6 and then disconnected, laptop switched off. Few days later while separeting the videos from the pictures somehow i managed to copy all those already selected. I wanted to undo so pressed ctrl+z a few times because my laptop is a bit slow, but i pressed so many times that i not just undid copying but deleted the whole folder. Now i've lost all the pictures. Wtf just happened? Where have they gone? They are not in the bin nor in itunes folder or anywhere. Any ideas?
I have win8.1

To "Undo" what you just did or typed, hold down CTRL and Z.
To "Redo" what you just did or typed, hold down CTRL and Y.

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