I have just built a pc with an asrock ab350 pro4 mobo connected to a wd 1tb hard drive, i plugged everything in correctly, I insert my usb to download windows and drive 0 unallocated space has 0 mb used and 0 mb free space. So i tried to go into diskpart so i can clean it or format it and activate and it says my hard drive has 512 B size instead of 931 gb obviously. Can i fix this or do i have a faulty hard drive. Please reply asap. Thanks in advance.