New passport platinum hard drive prevents pc start or restart

Hi. Just taken delivery of external hard drive which appeared to be working fine with back up etc until I restart pc and I find the pc will not restart until I unplug the connected hard drive from usb port. Is this normal with this type of kit ? I never had this problem with old Iomega ext drive. My pc recognises the hard drive ok and it functions ok but just prevents either start up or restart whilst it is connected to pc.

Hello, Is your computer a desktop or a laptop? What operating system?

Hi, lluna,

Thank you for your email…

My pc is a Chronus Samsung notebook running windows 10. Hope this helps ?

Regards John G