Panda Global Protection 2012, 3 u, UPG, ES. Software type: Upgrade, License quantity: 3 user(s). Minimum hard disk space: 265 MB, Minimum RAM: 512 MB, Minimum processor: Intel Pentium 300 MHz. Compatible operating systems: Windows 7 (32-64 bits) Windows Vista (32-64 bits) Windows XP (32 bits)