Now every one using Pen drives very easily due to the low prices everyone buying pen drives like a pen or pencil,which are also causing problems to users which are the main roots fro problem regarding viruses ,viruses are residing in Pen drives not even deleting when formatted them.

So persons who want to make sure away from these USB devices can be safe from disabling USB Devices

Disabling USB Devices using Regedit

1. Go start run Regedit and navigate to 

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

in the right pane double click start change dword value of start form ‘3’ to ‘4’.

now all your USB devices are disabled.

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Enabling USB devices using Regedit

1. Go start run Regedit and navigate to 

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

change dword value of start form 4′ to 3

now all your USB devices are enabled.