Where can I get Drivers for a Maxtor One Touch Four Plus Hard Drive, to work with Windows 7 professional 64 bit?

The Drive used to work (although intermittently it could not be found without multiple reboots). But then I installed ProTools Version 11 and now the computer can't find the Seagate at all. Windows is calling it an unknown device. When I click "Driver" it says "no driver needed" or something like that. When I click "Update Driver" it says "The best driver is already installed". I can't find a simple driver file anywhere on my computer, nor on the Seagate Web site. thanks

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