Disable USB ports on Windows PC via Registry

With this trick, you can disable access to your USB(Universal Serial Bus) ports on your Windows based PC to prevent people from taking out data without permission or spreading viruses through the use of USB (pen and flash) drives.
1. go to Run window (win + r)
2. type in "regedit" & press enter
3. Navigate to HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\usbstor.
4. In the work area, double click on Start.
5. In the Value Data box, enter 4.
6. Click on OK.
7. Close Registry Editor and refresh your desktop.
8. To re-enable access to your USB ports, enter 3 in the Value Data box in Step 5.

This works on Windows 10, Windows 8, Windows 8.1, Windows 7 and Windows XP.

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