Cannot start Microsoft Outlook. Cannot open the Outlook window.

Outlook. Yes Microsoft Outlook is a great productivity tool but what do you do when you see this error: “Cannot start Microsoft Outlook. Cannot open the Outlook window.” Outlook will not open when you click on the icon. Outlook teases you as it appears it’s going to start and then crashes.

Here’s the solution:

  1. Click on Start
  2. Click on Run
  3. In the Run box type: outlook.exe /resetnavpane
  4. Click OK
  5. Outlook should now start

That’s It! If Outlook wasn’t running because of the error: “Cannot start Microsoft Outlook. Cannot open the Outlook window,” and you followed the above procedure exactly then Outlook should now be working fine.

If this solution just saved your day, perhaps consider buying me an espresso? (Completely Optional)


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92 Responses to Cannot start Microsoft Outlook. Cannot open the Outlook window.

  1. JohnC says:

    Worked like a charm! Thank you.

  2. Sam says:

    Thanks so much your advice worked perfectly. After hours of frustration. I now do not have to drive back to school 25 km away (on my holidays!!) to have tech support sort for me. Bless you!!!

  3. Chris D says:

    Worked great…just have to make sure you type the “space” between exe and /. Thank you so much!

  4. Dan says:

    THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU! THANK YOU!

    many thanks

  5. Servergeek says:

    Thanks for the info! I’ve been administering a 1200 PC network for 5 years, and never seen this error until today! Thanks for the fix!

  6. Dave says:

    Fantastic! – this happened after a MS Win7 update, everything else worked ok, however outlook refused to open and the command line above worked like a treat, thanks you!

  7. Zahari says:

    You are definately an Angel sent by GOD !!! it works immediately…. thank you….

  8. Mike says:

    Dude! I Love you man! No, seriously! Thank you so much!

  9. Karen says:

    This worked in 30 seconds. What a treat not to have to go in circles with Microsoft and tech support. Thank you!

  10. Alex says:

    worked in seconds, thank you

  11. Al says:

    Thanks man. Solved my problem.

  12. MS says:

    Another satisfied customer!

  13. Rick says:

    I spent hours trying to resolve this yesterday and last night my son told me to google this as he had the same problem and his IT guy couldn’t figure it out, so he spent the time on line and found this site. I copied and pasted the command and within seconds it worked. Thank you very much.

  14. junior says:

    thank you verry much it worked perfect!!

  15. hook129 says:

    It works great – Once I put the space in before the forward slash!

    Thanks

  16. Stephanie says:

    Thank you, thank you, thank you!!! If only all technical issues were so easily resolved! I copied and pasted the command, and Outlook was up and operating normally within seconds.

  17. Jorge says:

    Why is this happen.. It work great for me too, but I am wonder why is this happening. Does anyone know??

  18. Jen says:

    Hurray!!!!
    It works on my Outlook 2007 running on Win 7 Pro

    Thanks again :)

  19. Jocelyn says:

    You are a livesaver! This worked perfectly ;)

  20. Hal says:

    worked great for Win7 64 bit. Karma and coffee to you!

  21. Jim says:

    The first time I tryed it, I forgot the space after “exe” and it didn’t work but the second time it worked like a champ. Vista & Outlook 2007. If you are ever in the Tucson area, I would be happy to COMP you at my Condo Hotel. Take care and God Bless. Jim

  22. carrie says:

    You are the greatest!!!!!

  23. durisko says:

    AWESOME!!!! if you had an address I would mail you a starbucks card!!!! It worked! Thanks!!!

  24. ElectroGeek says:

    You can. Just click on the Donate button at the bottom of the post. Thanks!

  25. Caroline says:

    Thank you so much! I am completely not a technie, but very dependent on Outlook for my business. This error message drove me absolutely crazy. Resolved in minutes, even though I have no idea what I am doing with a computer. Thanks very much for the very clear instructions.

  26. ReZeroX says:

    hey thanks a ton electrogeek, you did save my customers butt!

    if your even in Grand Rapids, ill definitely get you a cup at schuils coffee. second best in GR!

  27. Many thanks, worked just fine. ( as a result i suddenly find your ads very interesting )

  28. claudine says:

    Thank You!!!! Working on this all day!! Super easy….you fixed it!!! THANK YOU…I can now go to bed!!! :)

  29. This worked immediately. Thank you VERY much!

  30. Zack says:

    Thanks very much, it worked so well ,can’t believe after it gave me problems 4 days

  31. Tumi says:

    Thanks mucho… i knew absolutely nothing about anything but your solution helped me lots!

  32. MacMD says:

    Dear ElectroGeek,

    I have been trying for 3 days to solve this issue…repair and repair but in vain. It is awesome!! brilliant…thanks a lot man!

    Have a blessed day…

  33. Richard says:

    Problem occured after a Win 7 update. Your fix worked like a charm!
    Thank you!

  34. Alan s. says:

    Thanks so much! Typing the text didn’t work, but copy and paste did…Have a decaf on me!

  35. Bonnie Bourgeois says:

    Thank you – I almost had to call the computer support guy because nothing I did was able to fix it until I searched the internet and found your site.
    Thank you so much!!!!!

  36. sami says:

    Hello ElectroGeek,

    Thanks A Lot…. also the comment that advised to do copy and paste.. it worked like magic..

  37. Seun says:

    Thank youuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu

  38. Steve says:

    It worked perfectly! THANK YOU…my Outlook opened, and one MUST type exactly as you stated! Thanks again! Is a virtual espresso OK?

  39. Wendy says:

    OMG, thank you sooooo much. I backed up my pc and then had this problem. Spent all day trying to figure out why. Did everything imaginable and nothing. Finally came across this and it worked. Really appreciate your post. May all ggod things happen to you always!!!!!!!!!

  40. Busta says:

    Hi ElectroGeek…I’m so frustrated. Here I am reading all this praise for your suggestion and it did not work for me. I still get the error. I am running WinXP and I just upgraded from Office2007 to 2010. I renamed my profile; and repaired through Add/Remove. I’d rather not remove it and reinstall. All other programs work except for Outlook. Ideas?

  41. ElectroGeek says:

    If all else fails you can call us at 888-345-GEEK or visit http://electrogeek.com and we can connect remotely and do an advanced repair on your Outlook for you. The solution presented works in many instances but sometimes further repair is needed.

  42. Justin says:

    Thanks for this fast fix! Your espresso raincheck is alive and well in Lebanon, NH!

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