Windows 7 bobz

My upgrade disk is asking me to uninstall Trend Micro Internet Security 2007. I have done that and rebooted but I still get hungup at the same point. I have no virus protection software on my PC. How can I get past this and complete the installation? Thanks

You can try this How do I remove old or new versions of Trend Micro products from my computer?
all though it doesn't say specifically for 2007.