Trick To Hide Your Partitions

1. Open run , type cmd Then type cd\
2. Type DiskPart in command prompt
3. Type List volume
4. select the volume which u want to hide . and type select volume 4(in my case volume 4 is for my G: drive)
5. then type remove letter G
Done
Now sm1 cant access ur drive even by typing address in url

To get ur drive back 
select the volume in which no drive letter is displaying 
type assign letter g