Windows USB Blocker is a handy portable tool for USB access management.



It allows you to quickly block or unblock USB storage devices on any Windows system. This is a great way to prevent unauthorized USB activity on your machine since USB devices are one of the primary causes for spreading virus/malware from one system to another.

Beauty of this tool is that it will block only USB Storage devices like USB Sticks or Portable Disks. However normal USB devices like wireless keyboard/mouse plugs, bluetooth/wireless/internet dongles will continue to work without any problem.

As said above it is portable but there is an installer version if you want to install it locally on your system for regular usage.

http://www.majorgeeks.com/files/details/windows_usb_blocker.html