video files gone

So i need help with trying to recover one of my deleted video files, I shouldn't have deleted. I've tried to find the best software to get it back, But you need a conformation key for that and i dont have one. :( Is there any other software that recovers video files without paying for it, or...

Has anyone ever experienced this? I had several mov files on my desktop while editing, went to drag in some audio for the videos to grey out on the timeline and all the mov files were gone. I luckily had a backup but that was so close. I am hoping it isnt a virus or malware so I am doing some...