Hi,

I just upgrade my old Dell Inspiron 14R 5421 with SSD.
The old hdd i put in the hdd caddy at optical drive.

I already install Windows 10 (fresh install) at the SSD.

In BIOS detect both drive (SSD & old hdd)
In Disk Management also detect the both drive.

But in My Computer only show SSD.
The old hdd drive cannot view.

I already update all driver but still cannot view the old hdd drive.

Anyone can help me?

Thank you

try check if your hdd is on GPT or MBR. If the system use GPT your old hdd need to convert to GPT and vice versa. backup the file first before change it

Well, it can be detected by Windows as evident in the disk management. Can you try to right client on the volumes and assign drive letter to the partitions?

The old HDD is not mounted in the disk management. Look at your own screenshot, no drive letter is assigned to them
Assign a drive letter to them

But the best method is to transfer the data inside there to another disk, remove all partitions then create a single partition inside the 2nd HDD
And change it to GPT instead of MBR

Both drive are GPT.

Thanks!!!
Its work

Thanks!!!
Its work