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I intended to use this as a clone of my OS drive as a backup.Could not get it to format or stay formatted on two different computers, one Windows 7 and the other Windows 10, both through administrative accounts using disk manager. The drive would fail a format, or would format and then disconnect, reconnect and not be formatted after. Gave up after 6 tries between both computers using various different byte allocations.Amazon like a champ though refunded my money a..