Problem: This file contains macros with an expired or revoked signature

Problem: This file contains macros with an expired or revoked signature

When I open Outlook the following message pops up:

This file contains macros with an expired or revoked signature. Since you are running under High Security Level, these macros will be disabled.

I have tried changing the security level and ran a virus checker to no avail.

 

Solution: This file contains macros with an expired or revoked signature

CAUSE
This behavior occurs when Word macro security is set at the High security setting, and a Word add-in file contains a macro with an expired certificate.

WORKAROUND
To determine the name and location of the add-in file that contains the expired certificate, follow these steps:
1.    On the Tools menu in Word, point to Macros, and then click Security.
2.    Select the Medium security setting, and then click OK.
3.    Quit Word. Quit Outlook if you are using Word as the e-mail editor.
4.    Restart Word.
5.    When the Macro Security dialog box appears, the first three lines will display the location, file name, and software vendor for the file that contains the expired certificate. For additional information about the expired certificate, click Details.
6.    Click Disable Macros.
To restore the High macro security setting, follow these steps:
1.    On the Tools menu, point to Macros, and then click Security.
2.    Select the High security setting, and then click OK.
After you determine the source of the expired certificate, you may decide to trust this software vendor. If that is the case, use one of the two following methods to continue using the add-in file and to prevent the “expired or revoked signature” message from appearing when you start Word.