Prior to copying the installation files onto the hard drive, the Configuration Wizard checks the computer for third-party software incompatible with Kaspersky Lab 2009 product. The records of AVG8 in the system registry are identified by the Wizard as a fully installed and functioning anti-virus AVG8 although the product has already been uninstalled. As a result the Configuration Wizard asks to manually uninstall the incompatible software and interrupts the installation.

 To resolve the situation you should do the following: 

• cancel the current installation of Kaspersky Lab 2009 product 
• download the archive avg8.zip 
• unpack all files from the archive avg8.zip into one folder 
• run the file AVG8_Kleaner.exe
• wait till an information message appears

• click OK
• restart your PC 
• rerun installation of Kaspersky Lab 2009 product