To hide a folder
1. Right click on the folder and choose "Rename" or click two times (Not double click) on the folder
2. press alt and enter 9 (use Num Pad 9) 8 or 9 times
3. Press enter
4. Right click on the folder and select properties
5. Select customize
6. Select Change Icon
7. Select a blank Icon from the list
8. Click "OK" and then "Apply"
9. Click "OK"
But actually it is there itself.