Ok, i have 2 500gb Seagate Barracudas that I pulled from an unused machine. they were originally read as 1 tb drive under windows 10. I'm trying to format them using a new machine, but win10 disk management reads them as pretty crazy. here's the partitions: 1000 MB RAW OEM Partition, 260MB EFI system partitiion, 500 mb OEM Partition, 905.26 GB RAW Primary partition, 24.41 gb oem partition. I tried to format but it read the disk as a 905 gb disk under the simple format window and it clearly says 500gb on the disk label. any help would be greatly appreciated.