Outlook 2016 Freezes on the startup splash page.

try to Open Outlook 2016 on a Windows 10 machine, when it was installed and activated everything seems to work fine, however in the last couple of days when trying to open it the Outlook 2016 splash screen appears and says starting and it just hangs there, it will never go into the actual mailbox.

What could be going on?

Thanks in advance!
cmdolcetAsked:
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Edward PamiasConnect With a Mentor Team Lead RRS DeskCommented:
Try opening outlook in safe mode. Hit the Windows Key  and the R key to bring up the run line. Type Outlook.exe /safe    It could be an add-on that is causing this.
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Edward PamiasTeam Lead RRS DeskCommented:
You may have a corrupt OST. If you do not need the OST just uncheck cached exchange mode and see if it loads. Just go under account settings, highlight the email account, click change, go to more settings on the next screen, go to advanced tab, uncheck exchange mode.
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cmdolcetAuthor Commented:
I did already try that and it did the same thing.
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cmdolcetAuthor Commented:
Edward, that worked perfectly and ten I shut it down and re-opened the normal way and voila!

so my next head scratch er is what happen to cause this and why does this fix it?


Thanks!
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Edward PamiasTeam Lead RRS DeskCommented:
So what you do now is go thru the add-ons that you load and add them one at a time till you find the culprit. :)

Good luck! Thanks for starting my outlook troubleshooting part of my brain. I need it for one of my customers this morning. :)
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Edward PamiasTeam Lead RRS DeskCommented:
If you don't have any add-ons then I will be scratching my head. LOL! :)
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cmdolcetAuthor Commented:
Edward, where are the add-ons section in Outlook 2016?
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Edward PamiasTeam Lead RRS DeskCommented:
Click file, go to options, Click Add-ins (I called them add-ons) , you will see it right above Trust Center..
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