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Citation79's avatar
Citation79
Copper Contributor
Jul 15, 2020

Outlook 365 closing after opening

Hi, I have users working in Office 365 Outlook in web access mode while we prepare a server for them. The issue I am having is that I set up Outlook and after its done, I open it and it suddenly clo...
office 365
outlook
JesseCSC's avatar
JesseCSC
Copper Contributor
Jul 15, 2020

We are seeing this too for a couple hundred of our clients.  Appears to be isolated to Outlook that was installed from Office 365 as 2016 and 2019 clients are not (yet) effected.

 

I did note that for us if we disable BitDefender and launch outlook in safe mode it will come up and work, but the copy of Office then shows as 'unlicensed.'  Not sure if this is useful to anyone, but wanted to chime in in case it is.

  • JesseCSC's avatar
    JesseCSC
    Copper Contributor
    Jul 15, 2020

    Found two potential workarounds, just FYI:

     

    You can go to portal.office.com and download the installer and run it from there.  This worked on mine and several others.  It completely reinstalled Office and it works.

     

    More info and another solution can be found at: https://www.bleepingcomputer.com/news/microsoft/microsoft-outlook-is-crashing-worldwide-with-0xc0000005-errors-how-to-fix/

     

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