So I got a Seagate Barracuda 2TB (2016), and I installed it correctly and everything. No faulty SATA or power connectors. It shows in Computer/Disk Management, but I cannot assign a drive letter to it, or do anything. See below (it's the Disk 0, with 1862GB of storage):
Screenshot
Any idea on what I should do?
Screenshot
Any idea on what I should do?