I just built my first gaming pc, I already have everything up and running. My issue is that I decided to install 2 new hard drives, they are used, one is from my ps4 and the other is from an old pc I had laying around. My operating system is installed in a new ssd so that is all fine and well. I don't know how to format the two used ones, they are showing up on my device manager disc management disk 1 465.76GB, and Disk 2 298.09GB and it shows them having various partitions from the used devices I pulled them out from. When I right click it the only options it gives me is Convert to Dynamic disk, offline, properties and help. The other options are grayed out and cannot click on them. How do I erase all that old stuff and make the old little partitions go away so I can use the full memory space? When I right click on the volume I can delete it then it becomes unallocated but how do I make it one big stor age device? (Windows 10 Pro