Here is trick to hide specific drive or all drives from My Computer.
Following are the steps for it :
- Open "run" Menu
- Type ''gpedit.msc''
- Then go to following path :

- Then at right side of panel select the option "hide these specified drives in My Computer"
- Then select "enable" option, after that select "drive/s" you want to hide
- Then Click Apply and Ok
- It's done..
**Tip : It only hides the drives but you can access it from Address Bar.