The "Kasper" we have on all our computers in the family for many years. Have so far spared from jedwegen malicious viruses and Trojans geblieben.Vierenscanner and firewall software. The Mehrplatzlizensen are also cheaper compared to single purchase. I must also not immediately all licenses installieren.Die term begins installing on each PC. In addition, you can key in reserve eingeben.Er is taken when the old License has expired. Works reibunglos.Es are also no problems with the remaining term to eg reformatting.