Symantec Norton AntiVirus 2012, 1u, 1Y, OEM. Software type: OEM, License quantity: 1 user(s), Number of years: 1 year(s). Minimum hard disk space: 300 MB, Minimum RAM: 256 MB, Minimum processor: 300MHz. Compatible operating systems: Microsoft Windows XP (32-bit) Home/Professional/Tablet PC/Media Center (32-bit) SP2+