Weird problem regarding Installer, help please

[Harley Davidson 95 Heritage]

On occasion, while conducting an operation such as opening a folder,
clicking to open a program, etc., Microsoft 2007 professional (office)
begins to install through windows installer, goes through some gyrations,
then tells me the installation cannot continue. I never asked it to
continue, nor even begin. Not only do I not want this program to open or
install I don't even have it on my machine, at least I cannot find it.

Anyone know what I can do to stop this annoying event? It happens a couple
time per week without fail. I have gone through the registry with a fine
tooth comb and am missing something I would like to delete.

Thank you,

T

 

[Not Me]

Did your machine come with a trial version that was removed?
It sounds like some type of file you are opening is linked to Office and
Windows is trying to install the program to open it.

 

[Bob]

You may have a pre-installed trial version of Office. If so, remove it.