Antivirus software series kaspersky antivirus platform windows version upgrade language german distribution form ffp frust free packaging media type dvd rom licence type single user licence runtime 12 months number of devices 1 number of user licenses 1 minimale betriebssysteme microsoft windows 10 microsoft windows 8 microsoft windows 81 minimale prozessoren single core 32 bit 64 bit empfohlene prozessoren 64 bit single core 32 bit