USB Flash Block/Unblock utility is a small, simple, yet truly a portable program that is designed to lock/unlock the functional use of Flash Drive/Mass Storage/external drives that connect to USB ports on your computer.

Features:
* Small and lightweight. Only 931kb (compressed)
* Very simple interface. Not the abstruse task for those who, without knowledge of it
* Quick set and reset.
* Useful message will be displayed if errors occur.
* Free for personal/commercial use.

Possible scenarios:
-This program is suitable for the system administrator to limit or completely disable USB Mass Storage Device within the organization.
-For Internet cafes and computer labs, to prevent the spread of the virus through Flash. You can use USB Flash Block/Unblock to restrict access by setting the read-only, or totally prohibit the use of a flash drive, select Disabled.
-Your company/you personally spend policies ban the transfer of data on external drives without your knowledge. You can use this small program to enable USB port to transfer your personal information and turn it back.

What's new in version 1.1.22:
* Works well with Vista/7 (UAC). Automatic prompting of administrator privileges to run this program
* Fixed a bug: correctly display the current settings of the USB access during startup
* Minor ulčšeniâ-design review and code optimization

Download Here