Microsoft Outlook Error – “Cannot start Microsoft Office Outlook. Cannot open the Outlook window.”

When going to open my Outlook email client this morning I received the following error message:

“Cannot start Microsoft Office Outlook. Cannot open the Outlook  window.”

Cannot start Microsoft Office Outlook. Cannot open the Outlook  window

This was easily solved by running the following command from the ‘Run’ prompt. *IMPORTANT: Make sure that you have a space between the ‘Outlook.exe’ and the ‘/resetnavpane’ command switch.

“Cannot start Microsoft Office Outlook. Cannot open the Outlook  window

If you are running Windows Vista or Windows 7 you won’t have the ‘Run’ option enabled by default.

“Cannot start Microsoft Office Outlook. Cannot open the Outlook  window

To enable ‘Run’ option go to the ‘Customize Start Menu’ section and check the ‘Run command’ box.

“Cannot start Microsoft Office Outlook. Cannot open the Outlook  window

Everything going well this should fix you’re “Cannot start Microsoft Office Outlook. Cannot open the Outlook  window.” error.

 

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119 Comments on "Microsoft Outlook Error – “Cannot start Microsoft Office Outlook. Cannot open the Outlook window.”"


Guest
TweeZz
3 months 14 days ago

I had the same error when trying to open a *.eml file.
I have 2 mail apps on my computer. Thunderbird and Outlook. When Thunderbird is set as the default app to open eml files, I get the error.
After setting Outlook as the default app to open eml files, it works just fine.

Guest
jerry
3 years 4 months ago

Thanks for the detail solution. I have found one more interesting post related to this outlook error, here: http://outlook-exchange-server-errors.blogspot.in/2012/02/how-to-fix-cannot-start-microsoft.html

Guest
T.Johnson Miller
3 years 4 months ago

“Outlook.exe /resetnavpane” worked for me.Thanks

Guest
3 years 11 months ago

thanks fro bringing us to the solution of the problem

Guest
Karen Weber
4 years 9 months ago

Your instructions worked perfect. Thanks for the extra one about enabling ‘Run” You’re awesome!