Outlook Window/Outlook Won’t Open
Cannot Open Outlook Window/Outlook Won’t Open
This is a common error indicating the data file where all Outlook information has been stored cannot be opened. The problem can be fixed simply by restarting Outlook in safe mode
Another method is to use “reset navigation pane,” a feature that resets the navigation pane settings to its default settings. This is effective in doing a clean start to the Outlook client.
Enter outlook.exe /resetnavpane
in the Start menu to reset the navigation pane.
You can also close the Taskbar window display of the Outlook.exe file using a simple Ctrl + Alt + Del. On a successful restart, the problem should be resolved.