How to initialize a disk?

Question

Iron

Good day. After buying the SSD, I inserted it into its regular place, and the HDD through the adapter into the DVD bay. HDD is not showing up in explorer. When you try to initialize it through Disk Management, it says "The specified disk cannot be converted because its size is less than the minimum size of gpt disks." but at the same time, he quietly loads the Ubuntu that is on this disk.
How to fix it?
Thanks in advance for your reply.

Answer 1

Solved the problem. In the device manager, despite the fact that immediately after installing Windows I installed the latest drivers for the AMD chipset, the standard AHCI driver from Microsoft remained there.
The driver was updated and everything worked.

Answer 2

ext4 in Windows does not "initialize"