USB hard drive not appearing in My Computer

Pooneil

Honorable
Apr 15, 2013
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I have a 3TB Buffalo USB hard drive that was loaned to a friend to back up a Mac. When I now try to use it with 64bit Win 7, it does not appear in My Computer. It does appear as a HD in device manager, but I cannot reformat it from there. How do I get the HD back into operation as a Windows drive?