I've got few machines with few versions/editions of Office installed

2 machines with Office 2016 Pro
2 machines with Office 2013 Pro
2 machines with Office 2016 Home & Business
2 machines with Office 2016 365

But I only use Outlook for my hotmail account on 2 machines, one Outlook 2016 and one Outlook 2016 for Home and Business.

My problem now: I can't use Outlook on both (I can use safe mode only) the message is

Microsoft Outlook has stopped working

A Problem caused the program to stop working correctly. Windows will close the program and notify you if a solution is available

When trying to repair Outlook 2016 on one machine, system asks me to re-install Office 2016 Home and Business which is wrong, this machine has Office 2016 Pro installed around August 2016 as shown



I bought a new machine in March 2018 and installed Office 2016 Home and Business did not know it has Office 2016 365 pre-installed (I think trial version). Now my question

(a) Why Microsoft did not get the right product for my right machine,
(b) Can I uninstall trial version and this won't effect my installed version ? How

Regards.