i recently installed a 500gb hard drive in an 09 macbook pro because the previous hard drive had went bad and i'm trying to install the OS.X Snow Leopard. Couldnt install it because it couldnt find the Hard drive when it asked choose drive to install...the 500gb hard drive is brand new. What do i do?
You need to partition the drive. In the Snow Leopard installer, go to the Utilities menu, and start Disk Utility. From there, you can partition your new drive, and then you can install the OS onto it.