Step 1: Close the application when Microsoft Outlook is not working. Way 1: Fix 'Microsoft Outlook Has Stopped Working' in Safe Mode Way 4: Recurring 'Microsoft Outlook has stopped working' via creating new pst file.Way 3: Repair 'Microsoft Outlook has stopped working' through Event Viewer.Way 2: Solve 'Microsoft Outlook has stopped working' by SCANPST.Way 1: Fix 'Microsoft Outlook has stopped working' in safe mode.Walk through the steps below to address the issue. Then I found there are four workarounds on how to fix Microsoft Outlook has stopped working. On one occasion, when I launch the Outlook and it not responding and the prompt shows me that Microsoft Outlook has stopped working. How to Fix Microsoft Outlook Has Stopped Working