Win 7 pro wants to reformat my book essentials

mapderf,

It is possible the USB 3.0 host driver in the system, the USB 3.0 ports, and/or the USB 3.0 cable are/were affected. For testing purposes, I would suggest re-installing USB 3.0 controller drivers in your system, then proceeding to connect your disk drive. If you unfortunately encounter the same message, I would recommend testing another USB 3.0 system for similar behavior, then you may need to re-format the device on USB 3.0 mode if it does.

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