Editions Profil BitDefender Total Security 2010. Software type: Upgrade, License quantity: 3 user(s), Number of years: 2 year(s). Minimum hard disk space: 450 MB, Minimum RAM: 512 MB, Minimum processor: 800 MHz. Compatible operating systems: - Windows XP, SP2, 32/64 bit. - Windows Vista, SP1, 32/64 bit. - Windows 7, 32/64 bit.