BLOCK USB TO ACCESS FROM YOUR COMPUTER FOR OTHERS

How to Disable USB ports in window xp

1. Click Start, and then click Run. In the Open box, type regedit, and then click OK.
2. Locate and then click the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

In the details pane, double-click Start.
In the Value data box, type 4, click Hexadecimal (if it is not already selected), and then click OK.

1. Exit Registry Editor.

How to re-enable a disable ports in Windows

1. Click Start, and then click Run. In the Open box, type regedit, and then click OK.
2. Locate and then click the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\UsbStor

In the details pane, double-click Start.
In the Value data box, type 3, click Hexadecimal (if it is not already selected), and then click OK.

1. Exit Registry Editor