My HDD isn't showing up

[SuicidalCookie]

So i just installed my new motherboard and i had to fix somethings and had to re install windows as i mucked something up but my second hard drive with all my games stored on it and movies, isn't showing up, i expected this as that's what happened when i first installed it, but i do not want to format it cause i don't want to delete anything on it, so how to i make it usable without deleting anything on it? it shows up in disk management as it should but not in the normal area where you see your main hard drives.

 

[SuicidalCookie]

Never Mind, i did this and it added it to my hard drives

Open Command Prompt. (CMD)
Type: diskpart
At the DISKPART prompt, type: list volume
Make note of the number of the simple volume whose drive letter you want to assign, change, or remove.
At the DISKPART prompt, type: select volume n
Select the volume, where n is the volume's number, whose drive letter you want to assign, change, or remove.
At the DISKPART prompt, type one of the following: assign letter=L
Where L is the drive letter you want to assign or change.