How to disable USB port access in PC/Laptop.

1. Find "RUN" in start menu.   
2. Type "regedit" and press okay.                                                                                                    
3. Go to path  HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\usbstor.
4. In the next step clock on "start", which you can see right side.                                                       
   
   
   
5. In open box Enter "4", and press okay                                                                    
6. Close the Registry editor and refresh the page.now your USB ports are locked. no one can take data
7. To enable access to your USB ports, enter 3 in the data box you seen in step 5, press okay and refresh the page.