
To disable the Compatibility mode steps are as follows: If your Outlook is running in Compatibility mode, then disable it.

Then, set your newly created profile as a default profile.To create a new profile, in the Mailbox, click on Data Files > Add.Choose Start, go to Control Panel then choose Mail.Then, problems within Outlook are solved. If you create a new Outlook profile and transfers all your old data to it. Then select the file then launch the Outlook application.Click on Start button, now type outlook.exe/resetnavpane.You can repair Navigation Pane settings file by performing the following procedure:

Methods to Recover “Cannot start Microsoft Outlook 2016” Fix #1 Repair the Navigation Pane settings file If any MS Outlook file or its settings got damaged or deleted, it will corrupt the whole application and stops it to open.Frequently, when you do improper uninstall and reinstall of applications on the system may cause Outlook to not start.MS Outlook can decline to start even when you are using an old profile on an older Outlook version.If you are using MS Outlook is in compatibility mode, there is a possibility of Outlook not starting.If its size is 0kb, the error can be rectified. Here “profilename” is the name of your Outlook profile.

