Incompatible program doesn't exist on computer

Hello, I hope that you will be able to help me.

I am upgrading my vista 32 install to Win 7. During the setup, the compatibilty report originally told me that Trend Micro Internet Security 2009 and Trend Micro Internet Security 2008 are preventing the upgrade.

I uninstalled Trend Micro 2009, as it's the only program I have on my computer and I've deleted all (I believe) references to it, yet the upgrade won't continue, because Trend Micro 2008 is preventing it.

Is there a reference somewhere that I could check?

No, unfortunately, it's not there. Neither is any reference to the GoogleToolbar which is also a sticking point, but won't prevent the install.

I've never (knowingly) installed the GoogleToolbar and it's definitely not a program in the Uninstall Programs section. It must be listed somewhere

The presence of a folder in x:\Program Files, even an empty one, will cause this.

Interesting... I've already deleted the Trend Micro Folder in Program Files, but there is a folder in Program Data that I can't delete.

Destination Folder Access is denied. I've changed the security settings to give myself full control, but to no avail

My memory is a bit hazy on this at the moment, but I believe that you'll have to take ownership of the folder.

I eventually deleted the folder... but the upgrade still won't proceed. The googletoolbar folder didn't exist anyway so I'm not sure if that was the problem.