McAfee Internet Security 2012, 1u, OEM CD, DUT. Software type: OEM, License quantity: 1 user(s). Minimum hard disk space: 500 MB, Minimum RAM: 512 MB, Minimum processor: 1GHz. Compatible operating systems: Windows XP SP3+ (32-bit) Windows Vista SP1+ (32/64-bit) Windows 7 SP1+ (32/64-bit)