Finally got it! I don't know why but it din't want to go very easily at first, both through Windows Disk Management and through the Seagate Disk Cleanser program I already had loaded on my computer. After a few tries the Seagate program wiped it 100% clean. Then I was able to initialize and format it very easy. Thanks everyone for all the recommendations.
06 Honda Accord EX-L 3.0L – Mobil 0W-20 AFE | Fram XG7313
02 Dodge Grand Caravan 3.3L - PP 5W-30 | Fram Ultra XG8A
69 Plymouth Road Runner 383 - Restoration