Sometimes, Outlook stops working and you can’t find the reason behind the problem. In such a case, we suggest how to open outlook in safe mode and try running it there. This will help you find out the cause behind the error and you can fix it right away. To open Outlook in safe mode, search “Run” in the windows search bar. Enter Outlook.exe /safe and hit OK. this will launch Outlook in safe mode on your Windows PC. Sign in to your Outlook account and see if you can access it. If the problem persists, then contact Outlook Help for more assistance.