A couple of suggestions:
From the VBA Editor menu select Tools\References
In the Available References list, is there any item(s) that are checked that start with the term "Broken" or "Missing"? If yes, uncheck it\them.
If you have a Personal Macro workbook, delete or rename it to disable it.
Where is the Excel Personal Macro Workbook Located?
In the VBA Editor's Project Explorer window (usually on the left), do you see any suspicious projects listed? There may be legitimate ones listed. Report back all your listed projects.