How to enable/disable your usb port(pen drive port)

*In normally every pc having 6 USB ports,so we no must know which port belongs to which order

Step 1:Right click on my computer and open manage 

 

step 2:Select Device manager from list

step 3:select universal serial bus controller from shown list

step  4:expand the list,that will show 6 usb ports

step 5:right click any port &select disable to disable usb port

  step  6:same thing to enable  the usb port,right click and select enable to enable the usb port