Port locker is the Data Care methods which gives extra care to the stored data by safeguarding it from virus attack and other malicious threats, which use other host devices as their carriage, most probable being: USB drive, CD/DVD, Printer or LAN etc. The viruses are not allowed to enter into the hefty system through the means of these most used hosts. As, external device ports are blocked using Port Locker tool for perquisite requirements.