Your computer stores passwords for networks it has connected to previously. You can view these in your system settings without downloading third-party software. To help you get back online safely, could you tell me:
I can walk you through the to reset or find your login credentials.
However, most programs labeled exactly as "WiFi Password Hack v5 2013" were not legitimate recovery tools. They were typically:
Most routers have the default key printed on a sticker on the bottom or side.
If you have forgotten your own WiFi password or need to manage a network, there are safe, legal ways to do it: