PenyuUSB software to control USB mass storage from virus spread and stolen data. Administrator can block and unblock USB mass storage using password. This can avoid unauthorised use of USB mass storage. Suitable for school or colleges computer labs and also for corporate use. Prevent students from spreading virus using unauthorised USB mass storage. Avoid sensitive corporate data from being transferred or stolen by using USB mass storage. Control can be done by using password before USB mass storage can be blocked or unblocked.