I recently purchased 2 x 3TB My Book Essential External Hard Drives and I can only get my computer to recognize one at a time, I have to unplug one of them to gain access to the second one. I specifically purchased 2 to have my movies on one drive & TV series on another. Does anyone have any suggestions as to why this is happening? My OS is Windows 7.
This is a Windows issue try this fix http://community.wdc.com/t5/Other-Externals/Problems-with-having-more-than-one-USB-2-0-WD-2-TB-Elements/td-p/285724
Joe