I suggest Norton software for Windows 64 bit
I suggest future Norton Antivirus 2011 and norton Internet Security 2011 for Windows Vista 64 bit and Windows 7 64 bit. Microsoft launches first 64 bit antivirus x64 solution (free Microsoft Security essentials). 64 bit internet security software is more effective and efficient than traditional 32 bit platform. In addition, it will be able to effectively eliminate future crimeware for 64 bit platform.