CCleaner showing programs to clean that aren't on my computer

Hi,

I just downloaded CCleaner and it's showing me some programs that were at one time on my computer, but are no longer. I've made sure to check all registry, program files, and appdata folders for any instances of these programs and there is nothing, but CCleaner is still offering to clean them. An example is Acronis True Image. Are these just offered by default or can I remove them from the cleaning list?

Thanks

Are these just offered by default or can I remove them from the cleaning list?

It's still detecting them from somewhere either physical files or the registry.

Edit:

See this recent post by Nergal.