I run Windows 7 64 bit.
MB: Asus P8Z77-V-Deluxe
Seagate Expansion Desktop STAY2000102 2TB USB 3.0
The HDD is connected to the Asmedia USB port.
I made sure to install the drivers
when no device is connected to the USB and restart the PC. It worked fine after initial reboot. But after the 2nd reboot, the PC doesn't recognize the external HDD anymore.
If I connect the HDD to the intel usb port, it's bad as well.
I attached a screenshot that shows it's connected but not identified.
P.S. - Now the PC calls my Seagate external drive "External"... (2nd screenshot) after following this: Missing USB Mass Storage Device driver