Step 1: If your Microsoft Outlook will not open, the first step is to open Windows Task Manager. There are a couple of options to do this, but the most efficient way to open Task Manager is to press the Ctrl, Alt & Delete buttons at the same time.
Why does microsoft outlook not open?
Install the latest updates. The Office installation on your computer might not be up to date. Make sure that Outlook is not in use by another process. Some extra ideas to think about are investigate possible add-in issues, check the problem that caused by external contents, check whether your mailbox is too large, and see more.
A frequent inquiry we ran across in our research was “Why is my Microsoft Outlook not working on Windows 10?”.
If your Microsoft Outlook will not open, there could a few reasons why. Outlook has a tendency to leave multiple processes running in the background, most of which are invisible to a computer user. If one of these processes is already running, attempting to open Outlook again will not display anything.
Why is my outlook not opening in safe mode?
If Outlook opens as expected in Safe Mode, the issue is likely an add-in or toolbar extension., and disable add-ins. One or more add-ins could be conflicting with Outlook and cause the problem. Disable all add-ins and see if this resolves the issue.
Why does outlook hang at loading profile or not start?
After updating to Current Channel Version 1905 (Build 11629.20196)and higher, Outlook may hang at loading profile or won’t start. You may notice that if you open Task Manager that other Office processes are unexpectedly listed even though you did not open the application. If you end those processes it may enable Outlook to then open normally.