Microsoft announced last year that it would be retiring the Windows Mail & Calendar apps in favor of the new Outlook at the end of 2024. As of January 1, these apps are no longer functional and will refuse to send or receive any more emails.

Designed to replace the current Mail and Calendar apps, the new Outlook can only be removed after it's been installed.

Microsoft won't let you block lock new Outlook on Windows 10 (auto-install) but you can remove it via PowerShell.

Microsoft decided to force install the new Outlook on Windows 10 starting with the new updates of the OS. You can quickly uninstall it after.

The good news is that the February update which brings the new Outlook doesn't strip out the old version of the app, so you can still use that.

Windows 10 remains popular. However, persistent users must migrate to Windows 11 in October to continue receiving security updates. Microsoft cannot force

The new Outlook will be automatically delivered to all computers running Windows 10. It is the same version of the program already installed in Windows 11, provided users continually download all updates.

For several months now, Microsoft has been urging Windows users to switch over to the new Outlook app, with classic Outlook recently getting an official “death date”. Many aren’t happy about this, holding off on jumping ship as long as they can — but the clock is ticking down.