You should plug the drive into your Amiga and check if HDToolbox sees it. If it sees the drive, you can use a recovery tool like RDB-Salv or RDBRecov to recover the data.
If the drive is not recognised by HDToolbox, it's probably dead.
If your PC freezes with the drive attached, you have no chance to recover this way. Because the best you get from the manufacturer's homepage is a DOS boot disk with some tools on it. If you can't boot, the disk is useless.
Bye,
Thomas
