Drive (E) not accessible

Hi, I have a 1TB hard drive that I plug into my computer via USB. I access it as drive (E) and its called my EHD. I've been using it fine for the past year or so, when today I was viewing the pictures I have on it to create a slideshow, when the viewing program crashed. After my computer freezing up for a few minutes, I removed the drive and everything went back to normal. However now, when I plug my hard drive back in, the computer makes the noises that say its plugged in, however the Drive E option does not appear. When I unplug it, my computer also makes the same noises it does when the drive is unplugged as per usual. So clearly my computer recognizes it, however I can't access it. Would appreciate any help, thank you