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Cannot start Microsoft Outlook RRS feed

  • Question

  • I have an error has occurred when I try to start Outlook. It says. "Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. An unexpected error has occurred."  What can I do? I have uninstalled and reinstalled office 365
    Wednesday, May 1, 2019 2:37 PM

All replies

  • Hi Beaufort Lending,

    Have you made any changes to Office or Windows before this issue occur?

    A common cause for this issue is that Outlook profile is corrupted. To recreate a new one, please open Control Panel > Mail > Show Profiles > Add.

    Under the option “When starting Microsoft Outlook, use this profile:”, select “Prompt for a profile to be used”. Start Outlook with the new profile.

    If error continues, I’d like to recommend you start Outlook in safe mode. Please exit Outlook, press Win key + R to open the Run command, type outlook /safe, press Enter. This helps eliminate if the problem is related to any third party add-ins.

    Besides, for Office 365, we can scan Outlook by using the Microsoft Support and Recovery Assistant tool. Please check this official article.

    When using this tool, choose Outlook > Outlook won’t start.

    Any updates, please feel free to post back.

    Regards,

    Perry


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    • Proposed as answer by Perry-Pan Friday, May 3, 2019 8:05 AM
    Thursday, May 2, 2019 2:15 AM
  • Hi Beaufort Lending,

    Can you open Outlook normally? If there are any updates, please feel free to post back.

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped. If you have feedback for TechNet Subscriber Support, contact tnsf@microsoft.com.


    Click here to learn more. Visit the dedicated forum to share, explore and talk to experts about Microsoft Teams.

    • Proposed as answer by Perry-Pan Monday, May 13, 2019 8:09 AM
    • Unproposed as answer by Perry-Pan Monday, May 13, 2019 8:09 AM
    Monday, May 6, 2019 4:32 AM