G-Tech drives come pre-formatted for Mac. If you own an iMac, Mac Mini, Mac Pro or Mac Book Pro simply plug in your new drive to the thunderbolt port and start using it. Windows users will have to go through a feew basic steps before they are up and running. We'll be putting together a complete video tutorial on this in the near future. For now here are some valuable doscuments that G-tech has put together to assist Windows users.