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

New Outlook serves ads in the email client, which are impossible to remove without paying. Lack of a unified inbox makes it challenging to manage multiple email accounts in New Outlook. The interface of New Outlook is clunky and reminiscent of Windows 8, leading to an overall unpleasant user experience.

You only have a few weeks before the new Outlook is forced onto your Windows 10 PC. The new Outlook will arrive automatically with an optional Windows 10 release that will ship on January 28, 2025. The app will then roll out to all Windows 10 PCs as part of the monthly security release to Windows 10 that will become available on February 11, 2025.

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.

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.

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.

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