Reminders for meetings, tasks, and follow-up items do not display in Outlook.
This problem can occur if you have the option to display reminders is turned off either in the Outlook user interface or through a Group Policy setting. When a feature is configured by group policy, the option is disabled (grayed out) in the user interface. Therefore, it cannot be modified.
If reminders are not being managed by Group Policy, follow these steps to re-enable reminders.
Outlook 2016, Outlook 2013 and Outlook 2010
On the File tab, click Options.
Select Advanced in the Outlook Options dialog box.
In the Reminders section, select Show reminders.
Outlook 2007 and Outlook 2003
On the Tools menu, click Options.
On the Other tab, click Advanced Options.
In the Advanced Options dialog box, click Reminder Options.
In the Reminder Options dialog box, select Display the reminder.
Click OK three times.
Warning Serious problems might occur if you modify the registry incorrectly by using Registry Editor or by using another method. These problems might require that you reinstall the operating system. Microsoft cannot guarantee that these problems can be solved. Modify the registry at your own risk.
The option to control the display of reminders in Outlook is stored in the Windows registry by using the following registry data.
Key: HKEY_CURRENT_USER\software\microsoft\office\x.0\Outlook\Options\Reminders DWORD: Type Values: 0 = do not display reminders, 1 = display reminder (default behavior of the Type value does not exist)
Note 1 In this registry path, x.0 represents the version of Outlook (16.0 = Outlook 2016, 15.0 = Outlook 2013, 14.0 = Outlook 2010, 12.0 = Outlook 2007, and 11.0 = Outlook 2003)
Note 2 If the option to display reminders is being managed by Group Policy, the registry key path is slightly different.