I found a used hardrive in my house and decided to install it to my PC. Its plugged in, powered up, and running with a sata cable attached. Both of my hardrives are inserted into sata 2 ports. But every time I try to turn on my pc (with my original hard drive and the new one in at the same time), it gets stuck at the windows start up screen where it shows the window and the dots circling around (windows 8). When I take the new one out and just keep the original one in, it starts up fine. Whats the problem?