Hello people I have just made a computer and was about to install my Windows 8.1. I took my 2.5 hard drive out of my ps4 and into my pc. Thing is that it's full and when I want to install my Windows 8.1 it asks for where I want to install my Windows and says drive partition 1,2,3 an so on. But none of them work because they are not formatted. Now question is what do I do. I am kind of stuck. Please help!!!