Hide Drives Using Command Prompt

This method is much more easy and simplified. Just make sure you do it correctly. Here are the steps:
Serach cmd and run it as Administrator.
Type mountvol in command prompt and press enter. It will show the ID of drives, note the ID of drive you want to hide.

• We noted down for F:, viz 
• \\?\Volume{14394d58-7caf-11e2-af9b-806e6f6e6963}\
  • F:\
• To hide the drive, you have to type in command prompt:mountvol F: /d
• To bring it back, you have to type:mountvol f: [volume id] (The volume id is the one we noted down earlier), our command was:
• mountvol f: \\?\Volume{14394d58-7caf-11e2-af9b-806e6f6e6963}\

Note : Be careful while noting down volume ID, if you do it wrong, you will lose all the data of that drive. You should not try this with your system drive.