Microsoft Outlook has stopped working 2010, 2013 or 365, This issue might also occur if Outlook is installed in a compatibility mode.
To check Outlook is in a compatibility mode:
1. Open My Computer
2. Open Local Disk
1> Open My Computer>Local Disk C>Program Files>Microsoft Office>Office 12>Outlook.exe.
(Note: if you are using a 64bit computer then go to My Computer>Local Disk C>Program x86>Files>Microsoft Office>Office 12>Outlook.exe)
2> Right click on Outlook.exe and click on Properties and then click on Compatibility tab. Check if you have any check mark in any of the compatibility mode options. Make sure you also click on the option "change settings for all users" tab at the bottom of the same screen and look for similar check boxes in the window.
2> If you see any check boxes in the compatibility mode options, uncheck all the boxes and click on Apply and OK.
Try to open Outlook and check if it opens up. If you need any additional information on how to install or reinstall Office 365 or Office 2016 ,Outlook on your Windows computer, you may visit Office.com