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General demands: 

• 300 MB free space on the hard disk
• CD-ROM (to install the product from the CD-distributive) 
• Internet connection (to activate the product) 
• Computer mouse 
• Microsoft Internet Explorer 6.0 or above (to update anti-virus databases and application modules on the Internet) 
• Microsoft Windows Installer 2.0 or above

Operating systems: 

• Microsoft Windows XP Home Edition (Service Pack 2 and above) 
• Microsoft Windows XP Professional (Service Pack 2 and above) 
• Microsoft Windows XP Professional x64 Edition (Service Pack 2 and above) 
• Intel Pentium 300 MHz or above (or compatible) 
• 256 MB available 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) 
• Microsoft Windows Vista Home Basic SP1 (32/64 bit) 
• Microsoft Windows Vista Home Premium SP1 (32/64 bit) 
• Microsoft Windows Vista Business SP1 (32/64 bit)
• Microsoft Windows Vista Enterprise SP1 (32/64 bit) 
• Microsoft Windows Vista Ultimate SP1 (32/64 bit) 
• Intel Pentium 800 MHz 32-bit (x86) / 64-bit(x64) or above (or compatible). 
• 512 MB available RAM.

Only Kaspersky Lab products versions 9.0.0.736 and higher are compatible with Windows 7.

• Microsoft Windows 7 Home Premium (32/64 bit)
• Microsoft Windows 7 Professional (32/64 bit)
• Microsoft Windows 7 Ultimate (32/64 bit)
• Intel Pentium 1 GHz 32-bit (x86) / 64-bit(x64) or above
• 1 GB (32-bit) or 2 GB (64-bit) available RAM

To display the product’s interface optimally it is recommended to use standard screen resolution not less than 800x600 pixels.

Safe Run Mode, the component of Kaspersky Internet Security 2010, doesn’t work with Microsoft Windows XP x64, and works with limitations on Microsoft Windows Vista x64 and Microsoft Windows 7 x64.