A macro allows you to automate frequently
used steps or tasks to save time and work more efficiently. Macros are
written using VBA (Visual Basic for Applications) code, which opens the
door to hackers to do malicious harm, such as spreading a virus. The
Trust Center uses a set of criteria—valid and current digital
signature, reputable certificate and a trusted publisher—to make sure
macros are safe and secure. If the Trust Center discovers a potentially
unsafe macro, it disables the code and notifies you in the Message Bar.
You can click Options on the Message Bar to enable it or set other
security options. If the macro security options are not set to the
level you need, you can change them in the Trust Center.
Change Macro Security Settings
- 1. Click the File tab, and then click Options.
- 2. In the left pane, click Trust Center.
- 3. Click Trust Center Settings.
- 4. In the left pane, click Macro Settings.
- 5. Click the option you want for macros in documents not in a trusted location.
- Disable all macros without notification.
- Disable all macros with notification (default).
- Disable all macros except digitally signed macros.
- Enable all macros (not recommended, potentially dangerous code can run).
- 6. If you’re a developer, select the Trust access to the VBA project object model check box.
- 7. Click OK.
 - 8. Click OK.
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