Perhaps your macro is obsolete or has so many problems that you find it easier to delete and start over than to edit it. In any case, deleting a macro is simple if you follow these steps:
In the presentation that contains the macro, choose Tools, Macro, Macros. The Macro dialog box opens (see Figure 19.10).
Select the macro you want to delete.
Click the Delete button. A prompt appears, asking you to confirm your intention to delete the selected macro. Click Yes.
Caution
After a macro is deleted, it cannot be retrieved. Be careful to read the description box for each macro before you delete it, especially if you have several similarly named macros or if your macro names are not terribly illustrative.