How to hide entire Partition or drive

1.  Click on Start>Run
2. Type gpedit.msc
3. Navigate through user configuration> administrative templates > windows components> windows explorer
4. Double click on “Hide these specified drives in My Computer”
5. Click on Enable
6. Choose a drive which you want to hide, Click Apply.
7. To make it visible again select "disable" by double clicking on the “Hide these specified drives in My Computer” option.