Hi, some adware manages to hide as it were in the restore files, disable the system restore and then delete the files and then reboot and switch restore back on, it worked for me. Good luck.
Nokia 8 vs Galaxy S8
Best new design books 2017: From vintage infographics to the the psychology of type
iMac 21.5-inch (2017) review
Nokia 8 : design, caractéristiques techniques, date de sortie