"Installing a macro" is not a technical description of any one thing in
particular and more information is needed to provide a proper answer,
however ...
Macros (if it is a 'macro' that is causing your problems) exist in Documents
or Templates. When you start Word, one or more Templates are loaded and it
is likely that the troublesome macro is located in one of them. I suspect
that what you want to do is remove the template but the trick is finding the
right one. They are listed in the Templates and AddIns dialog which is
available off the Document template Button in the Developer tab in the
Ribbon (if you don't see this tab go to Office Button > Word Options and
check the "show developer tab" checkbox).
The Dialog will list your templates and you will have to use instinct to
decide which one is the Avery one. The Dialog isn't big enough to show you
the full path but, by default, it will probably be in
"C:\users\(userid)\AppData\Roaming\Microsoft\Word\Startup" (in XP, IIRC, it
is Documents and Settings\(userid)\Application data\Microsoft\etc). Close
Word, go to this location, and delete the template.
If this doesn't help can you give some more information - how you installed
and what does show in the templates dialog, for example.
