Q: Frozen Desktop!!

I was trying to put all my photos onto my new hard drive and accidentally dropped them onto my desktop. Completely froze my computer. Nothing would work. I could move the mouse cursor around but that's it. I shut down my computer thinking that might get it to reset itself but that did absolutely nothing. It turns back on and the mouse cursor still moves but nothing else works. Even the clock won't change time. If anyone can help I'd really appreciate it!