Microsoft previously only made this measure known via an announcement in the Microsoft 365 Admin Center. But as of update KB5051974, which is mandatory, the new Outlook app has been force-installed for Windows 10 users on versions 21H2 and 22H2.

Prevent the automatic installation of the new Outlook app with the Windows 10 KB5051974 update . Regardless of the advantages Microsoft lists for the new Outlook app, there's a bi

Microsoft has released the KB5051974 cumulative update for Windows 10 22H2 and Windows 10 21H2, which automatically installs the new Outlook for Windows app and fixes a memory leak bug.

Microsoft is automatically installing the new Outlook app for all Windows 10 users. You can prevent it with this trick.

The new Outlook app on Windows 10 is poorly received among users. Users have noted slower performance, cloud storage of emails, and invasive ads. Resources are available to learn about data usage and optimize the new app.