Please forgive me if this info is posted elsewhere. I tried knowledgebase and these forums but could not find it. What is the best way to upgrade? Uninstall old version, reboot then go into 'Program Files’ and delete the ‘ESET’ folder and the ESET On Line scanner folder? Reboot and install new version? Can the settings of version 3 be imported to version 4? Or is it best to start fresh?