Trying to Initialize disk

I have 2 disks on my pc, the one with the OS and the
second for storage.I have accidenly formated the second
one. Can I do something like system restore for the disk
and return to a previous date?

Furthermore, I am trying to INITIALIZE the disk following
this recommended procedure:
Right-click on MY COMPUTER and select MANAGE.

>>Click on DISK MANAGEMENT and in the lower right-hand
>>window (gray shaded area), right-click on your second

>
> drive
>

>>and select INITIALIZE DISK.
>>
>>If that does not work:
>>
>>Go to Start > Run and type: CMD , and hit enter.
>>In the Command Prompt window, type: DISKPART , hit

>
> enter.
>

>>Then type: RESCAN , hit enter.
>>Try initializing the disk again.
>>

Well,
I have tried this procedure but in the lower right-hand
window (gray shaded area),the selection INITIALIZE DISK
does not exit.
Please help !!

thx !!!