Uninstalling unwanted apps when traditional ways doesn't work.

[Android Question]

I use a Samsung Galaxy S4. Some time ago I used an app called Free My Apps and this through this program I foolishly installed some apps on my phone. Afterwards I could not uninstall some of these installed apps through the Play Store nor the Application Manager. I also tried some apps that uninstalls apps, but it did not work. I had a problem that my WiFi kept turning on even though I manually turn it off and nothing I did fixed this annoyance, so I decided to perform a factory reset to my phone.

To my big surprise these apps that were installed trough Free my App that I could not uninstall, reappeared by default after factory resetting the phone! It seems like these apps have fooled the phone in thinking it's a preinstalled app that came with the phone and it reinstalls by default when factory resetting the phone!

Any idea how to get rid of these deceiving apps?

 

[Rukbat]

They're probably installed as system apps. Root the phone and use Titanium Backup to uninstall them.