Michael changed his laptop to a 2TB hard drive, but as he tries to move his data over to the old drive, it can't be read. Leo says the best way is to get a $35 USB dongle that turns your old hard drive into a USB external drive. But Michael says that he gets a message requiring it to format. Leo says the drive may have corrupted and died. He recommends trying to use Recuva to recover the lost data, but it may be a mixed bag as to what it can recover and what it can't. Another option, if the data is invaluable, is to get SpinRite. It looks for damaged sectors and then works relentlessly to get the data off that bad sector and move it.