actually i got help from Gionatan which send me this hint Have you tried doing a clean installation? -1- Setting> Advanced> Self-Defense -> disable; -2- Kaspersky program -> exit; -3- uninstall Kaspersky Program; -4- restart pc; -5- use Kavremover tool (for each Kaspersky program installed even previously) (in case of paid key it must be returned because it is deleted); -6- restart pc; -7- install Kaspersky program; -8- manual update; -9- restart pc. Now, how Kaspersky program works? And this works for me .