There are many different ways in which you can download free software for this task. I had this issue with my windows xp machine and I am now using this program to reverse the damages done to my system. You can also select to encrypt your system with the help of a graphical user interface for extra safety. With this software you can basically have the power to lock down your system with the password so that anyone who attempts to gain admin rights will not be able to enter your system. You will basically be unable to do anything because you will think that your computer is already infected with some sort of virus, which is why there is no option for you to delete or remove the virus from your system. The code will then change all of the settings on your computer to give the hacker complete control. This program works by 'infecting' the computer with a piece of malicious code which then loads itself onto your computer when you either browse the Internet or use a Wi-Fi service (WPA). What makes this program so special is that it works on Windows and it was designed by a former Computer geek who also used to work on the Windows operating systems. It is especially useful in these days when you lose a forgotten password, can't access the Internet, or just want to for whatever reason. WiFi Password Revealer is an extremely useful tool which reveales all of the forgotten Wi-Fi passwords stored on your computer even when you need them.

Wifi hacking tools for windows