office xp and office 2010

hello fans,

since a few "updates" shows me ccleaner that i have office xp installed and office 2010. i have only 2010 installed.

the only thing i can found is in the registry.

could it be that this is left over from an older installation and called ccleaner i have office xp installed?

hkey_current user->software->microsoft->office->10.0 (word, excel, common)

the other key seems to be clean from office xp leftovers

the other is office->14.0 (office 2010)

should i delete this "office 10.0" entry?