You might have faced issue when Outlook hangs up while launching. Most of the time, this issue can be resolved by opening Outlook in safe mode. You can also resolve this issue by ending task in Task Manager.
Open Outlook in Safe Mode
Perform 3 simple steps to open Outlook instantly:
Step 1. Click Windows/Start button
Step 2. Type “outlook.exe /safe” without quotes and hit Enter.
Step 3. Click Ok on Create profile window.
Therefore, Outlook will launch normally.