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.

The new Outlook app will be packaged in an optional download for Windows 10 starting January 28th, but after the February 11th security update, it will be be a forced inclusion. The new Outlook app will work alongside the old one without changing any current settings or configurations.

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.