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How to stop Outlook from reverting to the new look every time I open it.

Welch, Michele 25 Reputation points
2026-05-14T13:20:02.8933333+00:00

I have seen several posts about this but none of them answer the question in a way that a non-tech person can understand. I have no X tab on options, I can't find a way to remove the New Outlook toggle button or a box to uncheck, I don't have any idea what a 32-bit DWORD is, I don't know what a registry editor is or how to get to it. I need an easy-to-understand way to permanently disable the new look. This is a work computer and I don't want to do anything that could damage the programs, I just want to keep the old Outlook.

Outlook | Windows | New Outlook for Windows | For business
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  1. Kurie 160 Reputation points
    2026-05-14T13:57:08.9266667+00:00

    The easiest thing to try first is this:

    1.	Open Outlook

2.	Look at the very top right corner of the window for a toggle that says “New Outlook” with a switch next to it

3.	Click that switch to turn it off

4.	Outlook will ask if you want to switch back to classic, say yes

    If it keeps switching back on its own every time you open Outlook, it usually means your IT department or company policy is pushing the new look onto your computer automatically. Since you mentioned it’s a work computer, that’s actually the most likely reason nothing you try seems to stick.

    If that’s the case, the honest answer is that no setting you change yourself will permanently fix it, because your company’s system keeps overriding it. Your best move would be to contact your IT helpdesk and just tell them exactly what you told us, that you want to stay on classic Outlook and it keeps reverting. They can disable it on their end in a way that actually sticks.

    Hope that helps clarify things.

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  1. Henry-N 13,045 Reputation points Microsoft External Staff Moderator
    2026-05-14T14:21:46.98+00:00

    Hi @Welch, Michele, 

    Thank you for posting your question in the Microsoft Q&A forum.       

    I understand that you would like to use only the Classic Outlook. For this scenario, you can follow the steps below: 

    1. Right-click the Windows Start button and select Installed apps.  User's image
    2. Scroll down and locate Outlook in the list. 

    User's image

    1. Click the three dots next to it and select Uninstall.
      User's image

    Once completed, you will be able to use the Classic Outlook only. 

    Thank you again for your time and understanding. While my initial response may not resolve the issue immediately, I’d like to gather more details about your situation so I can assist you more effectively.               

    I really appreciate your patience, and I’m here to help. Looking forward to your response!                         

    If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".                  

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