For Kaspersky Anti-Virus 7.0 and Kaspersky Internet Security 7.0 to function normally computer must meet the following minimal system requirements:

General requirements: 

• 50 MB of free space on the hard drive 
• CD-ROM (to install Kaspersky Anti-Virus 7.0 via CD)
• Microsoft Internet Explorer 5.5 and above (to update the antivirus database and application modules via Internet)
• Microsoft Windows Installer 2.0.

Operating systems: 

• Microsoft Windows 2000 Professional (Service Pack 4 or higher) 
• Microsoft Windows XP Home Edition (Service Pack 2 or higher)
• Microsoft Windows XP Professional (Service Pack 2 or higher)
• Microsoft Windows XP Professional x64 Edition 
• Intel Pentium processor 300 MHz or faster (or compatible). 
• 128 MB RAM. 

• Microsoft Windows Vista Home Basic (32/64 bit) 
• Microsoft Windows Vista Home Premium (32/64 bit)
• Microsoft Windows Vista Business (32/64 bit) 
• Microsoft Windows Vista Enterprise (32/64 bit) 
• Microsoft Windows Vista Ultimate (32/64 bit) 
• Intel Pentium processor 800 MHz 32-bit(x86)/64-bit(x64) or faster (or compatible). 
• 512 MB RAM.