"when I click on disc management it is telling me that the device is working properly"
Do you mean Device Manager (Disk Management doesn't give you that type of information)?
Look in
Control Panel > Admin Tools > Computer Management > Disk Management
and see if you can locate the ribbon which relates to that drive in the bottom-right panel.
It will have no drive letter and may say "Raw" in the description.
Right-click it and choose "Change Drive Letter & Paths", then click "Add".
Accept the default letter and click 'OK'.