Windows 8 stopped recognizing My Passport Ultra Drive

I have Windows 8 on Dell Inspiron 15 R laptop.

I purchased a Brand new My Passport Ultra Drive.

For past two weeks I plugged in My Passport Ultra Drive and created System Image.

This week, my computer will not recognize the My Passport drive. When I plug in the Passport drive, I hear sound from computer and see light on Passport drive.

When I go to Device Manager I see this

According to this link, I right-clicked and uninstalled the drive. Then I right clicked on USB and selected "Scan for hardware changes" and I still get the same Yellow triangle with "Unknown USB Device ..."

Recent Questions...