Standard Toolbar with file menu will not display. Below is how to force a reset on the toolbars
outcmd.dat
Keeps toolbar customizations. Resetting this will restore the Toolbar to default and recreates the icons that some add-ins might have installed.
- Windows XP
C:Documents and Settings%username%Application DataMicrosoftOutlook
- Windows Vista, Windows 7 and Windows 8
C:Users%username%AppDataRoamingMicrosoftOutlook
extend.dat
Keeps a registry cache of installed Exchange Client Extensions (ECE) add-ins and their status. Resetting this will force Outlook to retrieve the settings from the registry again and reset their status.
- Windows XP
C:Documents and Settings%username%Local SettingsApplication DataMicrosoftOutlook
- Windows Vista, Windows 7 and Windows 8
C:Users%username%AppDataLocalMicrosoftOutlook