I have too followed the similar thing in my case. WD7500BPVT disk attached with Sata port did not observe in WDIdleDisable tool functioning on windows XP because it was in an enclosure. So I then attached to the hard disk through Universal Serial Bus. This time the tool detects the examples and 01.01A01. There was a update alternatives. I clicked on it and some minutes after I acquired a message telling “Drive has been successfully updated".