One of my customers was complaining that Outlook 2013 would disappear when he minimized the program. Here is the “fix” for this if you are experiencing the same thing. This “fix” will also work for Outlook 2016 running on Windows 10.
Step One: Open Outlook.
Step Three: Right-click the Microsoft Outlook icon and uncheck the setting ” Hide When Minimized“. With that setting unchecked your problem will be solved.
If this helped you please leave a comment or share this tip with your friends.
This was posted by techspeeder.
Source: Microsoft Community