Disable Read & Write to USB diskdrive/pendrive

In response to query from Bojovic based on my previous post Disable Write to USB Drive Harddisk & Pendrive



Below are steps to totally disable the use of USB harddrive and pendrive from your computer.
1) run the regedit
2) Navigate to the following registry key:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\USBSTOR

3) then locate for name 'start', type 'REG_DWORD' and set the value to 4

note: if later you decide to allow the use of USB harddrive and pendrive, just set the 'REG_DWORD' value to 3.