Recently I was running my Mac Book Pro "Finder" through root by entering "sudo /System/Library/CoreServices/Finder.app/ in my Terminal. I was going to simply change my Finder icon by doing this. So I went to /System/Library/CoreServices, found the Finder app, but I accidentally dragged and dropped it outside of my CoreServices folder and onto my desktop. Finder immediately shut off, and it did not appear on my desktop at all. My Finder icon is still in my dock, though, but when I click it I am met with the message "The application can't be found." I tried restarting my computer, but I'm getting the same results. Finder is still in my recent items, but when I click it, nothing happens. If anyone knows how I can find Finder and get it running again, I will be eternally grateful! I'm desperate! Thanks in advance, and let me know if you need any further details.