The testing showed that it was not possible to either read or write a registry key
HKEY_CURRENT_USER\Software\Microsoft\Office\x.0. This key is normally write enabled since the user's office settings are stored here.
Some In-Application questions require reading or writing values below this key. See Registry Details for more information about Office registry keys.
If the error message is about an Office application you do not have installed, then you must first install that Office application to clear the error. The registry key will be automatically created the first time you run the office application.