I am new here and I really just signed up because I just built my first computer. When I ordered all of the parts I initially ordered two internal drives, a 1 tb Western Digital hard drive and a Crucial 250 gb SSD. On my first time assembly my system (on the This PC screen) saw my Crucial SSD and my optical drive and an external Western Digital My Book hard drive, but it never saw the internal Western Digital hard drive. I thought that maybe I got a bad drive so I sent it back and got a new one. Well I plugged in the new one and the This PC screen still does not see it. Of course I changed out all of the wires, the SATA cables and power cables, swapped everything around and the computer still sees all of the internal and external hardware but not the internal Western Digital hard drive. Funny thing is when I go to "Device Manager" it is listed under the Disk drives, and when I double click on it it says the driver is up to date and it also states "This device is working properly." So how come I can not see this hard drive in the This PC screen. I am a novice and I need some help. Thanks in advance.