The new Outlook will be forced onto Windows 10 PCs next month, and there is no way to block it
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.