आपने सिस्टम के किसी HARD DRIVE (D,E,F,G) को छुपाना देखिये बिना किसी सॉफ्टवेर के मदत से ........ .....................

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when double clicked on this drive an error message will open saying it is inaccessible .This is an alternate to hiding a drive and making it inaccisible. Here's how u do that :

Go to the registry editor and navigate to the following place :
HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer
In the right hand pane for the Explorer key, create a new "DWORD" value named ViewNoDrive

Double click the new value and enter it as .......
for hiding A drive set value as 1 , for B its 2 and C its 4 and so on and for Z its 33554432
generally multiply it by 2 for the next alphabet to hide.
Once done, reboot or log off and login in again. Then try double clicking the drive you made inaccessible.
You should receive a message stating that the drive cannot be accessed
AAPKA SAMEER


Hide the drives(c:,d:,e:,a:...etc) in My Computer
This is a great trick you can play on your friends. To disable the display of local or networked drives when you click My Computer.

1.Go to start->run.Type regedit.Now go to:

HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Policies\Explorer

Now in the right pane create a new DWORD item and name it NoDrives(it is case sensitive). Now modify it's value and set it to 3FFFFFF (Hexadecimal) .Now restart your computer. So, now when you click on My Computer, no drives will be shown(all gone...). To enable display of drives in My Computer, simply delete this DWORD item that you created.Again restart your computer.You can now see all the drives again. 
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