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cant open outlook

Gordon McGurk 0 Reputation points
2026-02-15T23:21:30.72+00:00

Hi, I cant open my Outlook Classic. Can you help please?

Outlook | Windows | Classic Outlook for Windows | For business
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  1. Hani-Ng 8,550 Reputation points Microsoft External Staff Moderator
    2026-02-15T23:56:56.59+00:00

    Hi Gordon McGurk

    Thank you for reaching out to the Q&A Forum.

    To better understand your situation, may I ask:

    • Do you receive a specific error message? If so, please share the exact wording.
    • Does the app freeze on the loading screen, or does it close immediately after you click it?
    • Did this start happen after a Windows update, an Office update?

    I also found this Microsoft’s official troubleshooting documentation you can try:

    I can’t start Microsoft Outlook or receive the error “Cannot start Microsoft Outlook. Cannot open t…

    I hope this information is helpful and I look forward to your response!


    Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.

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  2. Q&A Assist
    2026-02-15T23:21:38.4666667+00:00
    AI generated content. This question contains an answer created with AI from Q&A Assist. Learn more

    If you're unable to open Outlook Classic, here are a few steps you can try to resolve the issue:

    1. Restart Your Computer: Sometimes, a simple restart can fix the problem.
    2. Check Task Manager: Ensure that there are no instances of Outlook running in the background. If there are, end the task and try reopening Outlook.
    3. Repair Outlook: You can try repairing your Outlook installation. Go to Control Panel > Programs > Programs and Features, select Microsoft Office, and then click on Change. Choose the repair option.
    4. Run Outlook in Safe Mode: You can try running Outlook in Safe Mode to see if it opens. To do this, hold down the Ctrl key while clicking on the Outlook icon.
    5. Check for Compatibility Issues: Ensure that Outlook is not running in compatibility mode for an older version of Windows. You can check this by right-clicking on the Outlook shortcut, selecting Properties, and then checking the Compatibility tab.
    6. Create a New Outlook Profile: If the above steps do not work, you may need to create a new Outlook profile. Go to Control Panel > Mail > Show Profiles > Add.

    If these steps do not resolve the issue, you may need to consider reinstalling Outlook or checking for any recent updates that could be causing the problem.


    References:

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