Here is an interesting command prompt hack .You can hide, assign, delete etc. disk partition in few steps.
1.Select Start , then Run , in Run option type cmd. (or start->All Programs->Accessories->Command Prompt)
2.In Command Prompt (cmd) type DISKPART
3. Then type LIST VOLUME, after this you will get an partition overview, as shown below
4. Type SELECT VOLUME (number) , press ENTER on keyboard, then type REMOVE LETTER (letter )as shown below
5.After this disk partition will be hidden. How to return disk partition? Easy, just type ASSIGN LETTER (letter), as shown beloww
With Command Prompt (cmd) , you can manipulate disk partition. Here is list of possibility: