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

The new Outlook will be installed automatically on Windows 10 in an upcoming update. You cannot block the app from being put on your PC, though you can remove it after installation.

Come Patch Tuesday in February 2025, Microsoft will be tightening down even further. According to BetaNews, February will usher in a new phase in Outlook’s migration where Windows 10 users will be forced to install the new Outlook app on their PCs.

Microsoft will start automatically installing its new Outlook email app on Windows 10 devices. It's already pre-installed on most Windows 11 PCs and rolled out to some existing Windows 11 systems.

Users of doomed operating system to receive unloved app via an update Microsoft's new Outlook will be automatically installed on Windows 10 machines as part of an upcoming monthly security release.… According to a message in the Microsoft 365 message center,

Microsoft will automatically install its new Outlook client on Windows 10 PCs with next month’s Patch Tuesday update.

Microsoft will force install the new Outlook email client on Windows 10 systems starting with next month's security update.

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.

Starting next month, Microsoft will begin forcibly installing its new Outlook email client on all Windows 10 devices. This move will occur in two phases. The first phase of the rollout will begin on 28 th January 2025 with the release of an optional Windows 10 update. This update will include the new Outlook for users who choose to install it.

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

If you’re wondering how to remove the New Outlook from Windows 10, this guide will show you how to do that in a matter of seconds.