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Outlook 2016 will not open. When I tried the run command, it responded "Cannot start Microsoft Outlook. The command line argument is not valid. Verify the switch you are using." RRS feed

  • Question

  • I think I tried to merge it with windows mail or another email.  Now I can't remember.  Can anyone help me get it back to the way it was????

    Monday, December 18, 2017 3:50 PM

All replies

  • Hi,

    >>I think I tried to merge it with windows mail or another email. 

    What do you mean by “merge”? Adding account to other mail client?

    Could we know which command line do you use? When you type a command line in the Run, please pay attention to that there is a space between outlook.exe and / . For example, outlook.exe /resetnavpane.

    Normally, this issue can be caused by many reasons. You can refer to this official article about detailed steps to handle this issue.

    Any updates, please feel free to tell me.

    Regards,

    Perry


    Please remember to mark the replies as answers if they helped.
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    • Proposed as answer by Perry-Pan Friday, December 22, 2017 1:34 AM
    Tuesday, December 19, 2017 8:59 AM
  • Hi,

    Any updates about this issue?

    Just to check whether my reply helps

    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.

    Thursday, December 21, 2017 1:25 AM