How To Stop The New Outlook From Automatically Installing

Anonymous

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

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

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

0 comments

89 additional answers

Anonymous

2024-10-16T20:15:19+00:00

Thank you James. This answer worked for me. I know that this is a work-around but at least now I can use the old Mail app without the new outlook taking over. (At least until the next Windows update-Heh!)

The trick seems to leave the new outlook installed and just delete "olk.exe". The hardest part for me was taking ownership and then after deleting "olk.exe" giving back ownership to trusted installer. I had to do an online search to figure out how to do this.

According to your guidelines:

1- Log in to your admin account

2- Make hidden files visible

3- Take ownership of C:\Program Files\WindowsApps (do an online search for instructions)

4- Navigate to "C:\Program Files\WindowsApps\Microsoft.OutlookForWindows" and delete "olk.exe"

5- Restore TrustedInstaller as the owner of the WindowsApps folder (do an online search for instructions)

Kind regards

Chris
Was this answer helpful?

1 person found this answer helpful.

0 comments No comments
Anonymous

2024-10-15T16:24:05+00:00

Thank you for this suggestion. I tried but Windows would not allow me to delete the contents of this folder. I don't understand how to get full control of the folder.

Kind regards

Chris
Was this answer helpful?

1 person found this answer helpful.

0 comments No comments
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
Was this answer helpful?

1 person found this answer helpful.

0 comments No comments
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 No comments