How To Stop The New Outlook From Automatically Installing

Anonymous
2024-10-09T19:40:49+00:00

I need help please to stop the new outlook from automatically installing and replacing my windows and calendar app. I have uninstalled the new Outlook 4 times today. Every time I launch the old mail and Calendar app the new outlook automatically installs without my permission. It stops me from using the old app. This is very annoying. I don't want the new app. Is there any way to stop this from happening? Your advice would be appreciated.

Kind regards

Chris

Outlook | Windows | New Outlook for Windows | For business

Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.

0 comments
Answer accepted by question author
Anonymous
2024-10-16T14:59:10+00:00

What worked for me was deleting the new Outlook's executable ("olk.exe") from "C:\Program Files\WindowsApps\Microsoft.OutlookForWindows".

Once it's gone, it can't forcibly launch anymore when you open Windows Mail.

You first need to take ownership of the "WindowsApps" folder, then after deleting/renaming the .exe, restore the ownership back to "TrustedInstaller" (to prevent any potential issue down the line).

Useful Links:

Credit for original solution (deleting olk.exe):

https://www.reddit.com/r/Windows11/comments/1g1ffst/block_the_windows_11_outlook_app/

Detailed instructions on changing ownership:

https://answers.microsoft.com/en-us/windows/forum/all/restore-windowsapps-permissionss-to/464e65c1-6690-493b-8cf6-c85a5ac5468a

Was this answer helpful?

50+ people found this answer helpful.
0 comments

89 additional answers

Sort by: Newest
Most helpful Newest Oldest
  1. Anonymous
    2024-10-10T11:01:35+00:00

    Thank you. When I click "Edit" I can see 4 options. Which one do I click? System? After denying System, the issue still persists. The new outlook keeps auto installing. Is there another way to solve this problem.

    Kind regards

    Chris

    Image

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments
  2. Anonymous
    2024-10-10T09:46:04+00:00

    Hi,Chris

    As you said, we realized that this method no longer worked.

    Please try the new suggestions below, but be cautious.

    The new solution now is to change the security write permission of the folder Migration to deny after deleting the settings.json file.

    Right-click on the Migration folder, go to Properties, and under the Security tab.

    Click Edit, select the current Windows name, check the Write permission as Deny, and apply.

    You can give it a try. If any issues arise, feel free to reach out to me.

    Kind regards

    Jimmy

    Was this answer helpful?

    1 person found this answer helpful.
    0 comments
  3. Anonymous
    2024-10-10T07:39:10+00:00

    Thank you very much for your reply. Yesterday deleted all the .json files in that folder and the problem still persisted. Today I uninstalled the new outlook, deleted settings.json again and rebooted. Unfortunately this did not solve the problem. Whenever I launch the old Mail app after a few seconds the new Outlook will install without my permission and I have to uninstall it again. Then as soon as I launch "Mail" it happens all over again.

    I suspected that deleting "settings.json" was a fix that worked in the past but it does not work anymore.

    I will be happy to try any other solutions.

    Kind regards

    Chris

    Was this answer helpful?

    7 people found this answer helpful.
    0 comments
  4. Anonymous
    2024-10-10T05:19:55+00:00

    I don't see a settings.json. There's only callback.txt and correlation.json.

    Edit: tried removing correlation.json but it got put back in once outlook reinstalled.

    Edit2: did the same with the migration folder and it got put back as well...don't think deleting any settings.json would work anyways.

    Was this answer helpful?

    10+ people found this answer helpful.
    0 comments