I have an iMicro 3.5" SATA HDD External Enclosure that I had been using with my iMac. Now I'm on a PC, and I'd like to connect the external to my PC. right now it's connected through USB, and turned on (the green light shows). However, I can't find it anywhere on my PC. I've tried switching things off and on and rebooting but no joy. What should I do next.