GET RID OF NEW OUTLOOK NOW - Revert To Classic PLEASE

Anonymous
2024-10-01T14:50:45+00:00

Not sure how this happened but the new outlook is easily the worst piece of software I have ever seen. That takes into account MS-Dos and Win 95 disasters.

No clue why on earth they would force this garbage on us, when most of us used to say how great outlook was......

I MUST get back to classic now and how can I do it as it dropped all my other email accounts and created armageddon

NEED answers now

Thanks you

Outlook | Windows | New Outlook for Windows | For home

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  1. Anonymous
    2025-03-19T23:22:38+00:00

    There is no toggle to disable the new outlook and the registry does not show Preferences under Outlook. This is ridiculous. Simply cannot work with Outlook New. It's deplorable. The toggle shows on Windows 10 but my new laptop has 11 (which I absolutely detest) and there is no toggle.

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  2. Hal Hostetler MVP-Outlook 12,011 Reputation points MVP Volunteer Moderator
    2025-03-13T17:51:32+00:00

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  3. Anonymous
    2025-03-13T17:36:50+00:00

    I've installed MS Office 365. Word, Excel, and PowerPoint work fine. Outlook (NEW) is the only option that appears. When it tries to set up, it fails with both of my accounts. OWA works fine for both.

    Here's the error I receive:

    {"SessionId":"fad3aaf5-7071-e142-a030-98d2b3c0838c","Timestamp":1741887044756,"Error":"UNKNOWN undefined"}

    I've tried repairing MS Office 365 and Outlook (New) as well as reset.

    Mail does not appear as an option in the Control Panel and the registry change to Outlook Classic, as suggested, does not exist. There's no Outlook Preferences. This is a real stumper. I've never not been able to install Outlook.

    Please advise.

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  4. Anonymous
    2025-03-13T17:25:08+00:00

    Dear Pabmarc

    Good day! Thank you for posting in the Microsoft Community. We'll be happy to help!

    First of all, we regret for the inconvenience caused to your work. Based on your description, I have a general understanding of your question, please kindly refer to following:

    1. Open Outlook.
    2. Navigate to the Outlook menu.
    3. Uncheck the option for the New Outlook.
    4. Click the Revert button.
    5. Allow the application to revert to the Outlook Classic view.

    For your reference: **** Toggle out of the new Outlook for Windows preview - Microsoft Support

    If you don't see a toggle in the new Outlook for Windows, please kindly troubleshoot with these steps:

    1. Launch classic Outlook for Windows from the Windows Start Menu, not the new Outlook (identified by the "New" tag).
    2. Open the Registry Editor by typing "Registry Editor" in the Start Menu search and selecting the app.
    3. Go to Computer\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Preferences.
    4. Find and double-click on "UseNewOutlook" at the bottom of the list.
    5. Set the Value Data field to 0.
    6. Attempt to launch classic Outlook for Windows from the Windows Start Menu.

    Meanwhile, if you still need further help, then please kindly share more details about your issue with me so that I can do more research and tests, thanks.

    Thank you in advance for your understanding. Your patience and cooperation will be greatly appreciated. I hope for all the best!

    Sincerely

    Kerry Chen | Community Moderator

    "\HKEY_CURRENT_USER\Software\Microsoft\Office\16.0\Outlook\Preferences"

    Key does not exist and toggle button on Outlook menu isn't there. Now how do I import an existing pst???

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  5. Hal Hostetler MVP-Outlook 12,011 Reputation points MVP Volunteer Moderator
    2025-03-13T16:28:08+00:00

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