Hi, i didnt find something to help so i ask this. I'm trying to factory reset a tablet that has some viruses. I did it many times but again it appears. I thought it could download something.. but again i even didnt connect it to internet at all after the reset. It starts to install few apps like "hola launcher", an icon called "city movie" or others for porn. I even unistalled anything i thought it wasnt of the OS but still appears. Can reset delete trully everything?