HOW TO LOCK USB PORT IN WINDOW 7 ,WINDOW XP,WINDOW VISTA OS

HOW TO LOCK USB PORT IN WINDOW 7 ,WINDOW XP,WINDOW VISTA OS

To use this trick to disable USB ports-
follow the steps given below:-
1.Click on Start.
2.Click on Run.
3.Type “regedit” without quotes. This will launch the Registry Editor.
4.Navigate to  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\usbstor.
5.In the work area, double click on Start.
6.In the Value Data box, enter 4.
7.Click on OK.
8.Close Registry Editor and refresh your desktop.
9.To re-enable access to your USB ports, enter 3 in the Value Data box in Step 6.

Now no one person can plug their external device to your personal computer. now your personal computer
is safe from harmful virous ....cheers!!!!