How to Disable or Enable USB port access

Hi Friends Today I Shall Tell you How to Disable or Enable USB port access.
To disable the access of USB port follow the steps:

    1.Open the Registry Editor (Start -> Run -> Type regedit and click Enter)
    2.In the registry, navigate to the following key:
( HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR )
    3.In the right-side box, double-click on 'Start'.
    4.In the 'Value data' field enter 4 and click on 'OK'.
    5.Close the Registry Editor and reboot.

To Enaable the access of USB port follow the steps:
follow the same procedure as above except in the step-4 enter 3 in the 'Value data' field. 

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