Right-click on the Start menu button and select Disk Management. What is partition style are you on, MBR or GPT? But if the disk is employing 4K native sector, you can use 16TB space. Since you can only use 2TB of space from a 512B sector hard disk if you initialize it to MBR, you'd better format your disk to GPT if it is larger than 2TB. GPT is better than MBR if your hard disk is larger than 2TB.
Step 2, In the popup windows, choose MBR or GPT. Step 1, Run Partition Expert, in the disk map, you can see the new disk, titled with Uninitialized, Right-click on this disk. Frequently Asked Questions How to initialize disk to GPT or MBR from diskpart command?
