Troubleshooting Tip: Microsoft Outlook warning when FortiClient Antivirus is installed

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Description	This article describes why Microsoft Outlook produces a pop-up warning when FortiClient Antivirus is installed.
Scope	FortiClient 7.0.x and above.
Solution	Sometimes when a new FortiClient version is installed (after an upgrade from an older version), Microsoft Outlook presents the following pop-up error: A program is trying to access email address information stored in Outlook. If this is unexpected, click Deny and verify your antivirus software is up-to-date. This behavior is expected and is not an issue with FortiClient. The prompt may appear when the Outlook Trust Center settings are set to 'Warn me about suspicious activity when my antivirus software is inactive or out-of-date'. In Outlook: Go to Outlook -> File -> Trust Center -> Trust Center Settings -> Programmatic Access. To avoid this, make sure the FortiClient Antivirus signature is up-to-date. If the Antivirus status shows as Valid, Outlook should not display the warning. By default, the FortiClient Antivirus signature updates every hour. The message should stop appearing when FortiClient has received updates from the public Fortinet Distribution Server (FDS). This may take some time.