I Have two WD My Passport Essential (WDBACY5000ABK-PESN) both 500Gb. Both work fine when used one by one but when I hook up Both at the same time the second one not appeared at my computer, althogh both drive powered on. I have tried different USB port and different system but always same result. My…

Hi Windows uses a unique identifier called a disk signature to tell one drive from another. If both drives are the same make, size and type, chances are they will have the same disk signature. I was unable to connect two My Book Essential drives to my PC at the same time for this reason. How to …

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Can't use Two My Passport Essential at the same time

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blue_sky October 31, 2011, 4:02pm 6

Thanks For Help. I used both method and they are working.