This is a tricky issue so let me start out with an error that I think is related to a problem that I'm having a hard time trouble shooting. Here is the error (I think related to problem I'm having but maybe not).
Event Properties - Event 11, Disk
The driver detected a controller error on \Device\Hrddisk3\DR4.
Hard drives installed on this pc are as follows: Internal, two drives. C drive is for OS and programs, D drive is for Data only. Also, there is one external backup drive connected by USB directly to the computer.
My first question is how do I figure out what this event error is referring to. When I go into disk management, there is no disk3.