SecureMyUSB is a portable app that helps you secure your machine by blocking USB ports and USB write access.
Some malware can be introduced via an infected USB accidentally or by design. USB ports can also steal data from your machine. The goal of SecureMyUSB is to block this potential threat by effectively disabling possible entry points as well as writing capabilities.
It is displayed in a simple, user-friendly UI that works by checking the desired box. You will notice some grammatical errors on the interface, but don't let this deter your use of the app.
SecureMyUSB will be an additional layer of protection for your machine, and when used with other methods like locking your screen can be quite effective.