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Steven_F_603's avatar
Steven_F_603
Copper Contributor
Jul 15, 2020

Outlook 365 suddenly won't open

Hello; Outlook worked this morning, now it won't open, says to open in Safe Mode, but that doesn't work, tries to open for 5 seconds than nothing. Restarted PC and no help. Please advise! Steven F 60...
outlook for windows
  • Steven_F_603's avatar
    Steven_F_603
    Jul 15, 2020

    RobWill_19 

    Steven F, original poster here: my Outlook just fixed @ 1:20 Pm pst, I tried it and it opened right up. Hope the same for all of you, maybe 1 at a time! Thanks all.......

Joshua Bowers's avatar
Joshua Bowers
Copper Contributor
Jul 15, 2020

We are having the same issue reported from multiple users.  ~School District in California 

 

Did your computer recently install updates?  If so, which ones?

Steven_F_603 

  • Fernando_del_rio's avatar
    Fernando_del_rio
    Copper Contributor
    Jul 15, 2020
    try to run this command from MSDOS CONSOLE it is a down grade .
    c:\"Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.12827.20470
    worked ok for me
  • BobMasters's avatar
    BobMasters
    Copper Contributor
    Jul 15, 2020

    Joshua BowersSame issue with Outlook. Two updates ran today, one after the issue began, the other likely before. 2020-07 Cumulative Update for .NET Framework 3.5 and 4.8 for Windows 10 Version 1909 for x64 (KB4565633) is the last update listed in the history so I assume it ran after the issue began.

    2020-07 Cumulative Update for Windows 10 Version 1909 for x64 based Systems (KB4565483) is listed next, and I believe it ran prior to my trying to open Outlook, but I can't guarantee it.

  • DaveZ1225's avatar
    DaveZ1225
    Copper Contributor
    Jul 15, 2020

    Same problem, 50% of our computers at work.  If anyone has a suggestion, we'd appreciate it.

     

    Joshua Bowers 

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

    Joshua Bowers 

    I have the same problem and these are the updates that I just did.

    I guess I will have to undo them.

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

    3 Windows Updates KB4497165, KB4565633 & KB4565483 and Security update KB4565554 Joshua Bowers 

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

    Same problem this AM

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

      Frank_Petrus   try to run this command from MSDOS CONSOLE it is a downgrade .
      c:\"Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.12827.20470
      worked ok for me

  • Steven_F_603's avatar
    Steven_F_603
    Copper Contributor
    Jul 15, 2020

    Joshua Bowers 

    It auto=updates, so I don't know.... if others have same problem, then its Microsoft issue on their end?

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

      Same for me - managed to get a vital email sent via Safe Mode - tried System Restore to point before the updates from last night - and that FAILED after spinning my wheels for way too long!!!! This is totally unacceptable - my Real Estate business is majorly impacted from this forced update - I need full control over when/how/if I choose to apply operating system changes from Microsoft!!!!! I need this fixed yesterday! Who do I send the bill for lost hours!!!!!????

       

      • Anecdote's avatar
        Anecdote
        Copper Contributor
        Jul 15, 2020
        Uninstall the last update! Worked for me.
    • Fernando_del_rio's avatar
      Fernando_del_rio
      Copper Contributor
      Jul 15, 2020
      try to run this command from MSDOS CONSOLE it is a downgrade .
      c:\"Program Files\Common Files\microsoft shared\ClickToRun\officec2rclient.exe" /update user updatetoversion=16.0.12827.20470
      worked ok for me

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