Running Vista Home Premium X64 and trying to install Windows 7 Home Premium X64. The install fails the installer's compatibility test with the message "The following issues are preventing Windows from upgrading. Cancel the upgrade, complete each task, and then restart the upgrade to continue. For these items, make the following changes: Uninstall these programs. Open Control Panel and search for "uninstall a program". Trend Micro Internet Security 2008 " However, Trend Micro Internet Security was uninstalled from this computer at least a year ago and I can find no evidence of any shreds of it being present - not in the programs list, not in the file system and not in the registry. And, yes, I've run CCcleaner to fix registry problems too. I'm dead in the water with this Windows 7 installation. Any ideas - PLEASE? Thanks!