Free system cleaning tools

CCleaner : Removes your unwanted junk system files click below to download
https://www.piriform.com/ccleaner
Defogger : Prevents your system from fragmentation  click below to download
https://www.piriform.com/defraggler

How to hide your files using command prompt

Follow the Stepes

Run->CMD->diskpart->list volume->select volume (the volume you need to hide) -> remove.
the partition is hidden.
to re assign:
Run->CMD->diskpart->list volume->select volume (the volume you need to assign) ->assign

Thats it.....