How To hide HDD using Regeistry coding...

You can hide any of drive(s) by just adding two keys in windows registry goto start>run Type regedit and press enter. This will bring you to the registry editor.To hide any drive you have to follow these 2 steps STEP1: Hidding Drive goto HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\Explorer now create a new DWORD value NoDrives and set its value as 2^(Alpha Number of Drive Letter-1) where Alpha number are simple counting of alphabets from A to Z as 1 - 26 for example:
to hide C drive Alpha number of C is 3 so 2^(3-1) = 4 (decimal value) If you want to hide more than one drive than calculate the value of each drive as explained and then set sum of those numbers as value Step2: Prevent Access to the drive Now as we have make our drive invisbble but it is still accesible so to lock the drive we will create another DWORD value at HKEY_CURRENT_USER\Software\Microsoft\Windows\Curre ntVersion\Policies\Explorer create a new DWORD value NoViewOnDrive and set its value same as you have calculated for hidding the drive(s) Now your drive is locked. If you want to unlock and unhidden the drive then just delete these two keys and your drive is again accessible. You can also create two .reg files one for hidding and locking and another one for unlocking and unhidding