Step 1: Find the drive partition which you want to Show or which is hidden.
Step 2: Go to start and search for Computer Management
Step 3: In the left panel go to Disk Management and right click on your partition which you want to show.
Step 4: Click on Change Drive Letter and Paths... and from there click on Add.
Step 5: Choose any of the drive latter you want for your drive and click ok
Step 5: Go to My Computer and Refresh it.
Now Your Selected Partition is showing there.
Done !!!