Before you buy and install Kaspersky Anti-Virus (Mac OS X) you need to make sure that your operating system version corresponds to the system requirements of the product.
For proper installing and functioning of Kaspersky Anti-Virus for Mac the operating system version must be not lower than Mac OS X 10.4, Mac OS X 10.5.
In order to know the operating system version, perform the following actions:
on the desktop in the left upper corner click the Apple icon
select About This Mac from the menu that will open
in the About This Mac window you can see the information about your operating system version
Also you can find the required information about your operating system version in Kaspersky Anti-Virus 8.0. In order to see the information about your operating system version, perform the following actions:
open the main application window
click the Support button
in the window that will open in the Operating system section you can see the information about your operating system