Stop automatically installing the new Outlook

There is, but it's hidden. Read back this thread for explenation on how to see it.

This issue is REALLY ANOYING. Microsoft have not right to force users to use a particular app and to change settings on individual devices.

I don't want to use Outlook at all. I want to stay with Windows Mail because I have multiple email addresses on multiple domains . I can see them all in one window with Mail. It is infuriating that Microsoft keep unpinning Mail from my task bar and replacing it with New Outlook something i have to revers several time a day to work.

THIS NEEDS TO STOP NOW.

As of yesterday I've started using Wino Mail, which is very similar to old MS mail interface, the one issue is you can only have 3 email accounts unless you pay for unlimited.

Wino Mail - Free download and install on Windows | Microsoft Store

Well here's something I've noticed. When I am able to use my windows mail sometime it just wont send my emails. I'm not talking about telling me it can't send it oh no. I hit send and everything is normal but the people I send emails too just don't receive them at all and it never tells me it wasn't sent. It doesn't even matter which email address I use to send the email either. So several of my emails that I send to people just never get them and I am left wondering why people are ignoring me!

It says I cannot delete it it is being used by another program