If you are coming from the old app (the blue icon that came default with Windows 10/11), that app is being deprecated. Microsoft is forcing users of that app to migrate to the "New Outlook." In this case, there is no "Old Outlook" to go back to unless you buy the full Office suite (to get Outlook Classic) or use a third-party client like Thunderbird.
Once installed, the program will launch. The familiar ribbon interface, the customizable quick access toolbar, and the classic email layout will feel like coming home. outlook old version for windows 11
It sounds like you might be referring to the recent announcement from Microsoft regarding the forced transition from the classic Outlook app to the "New Outlook" (which is essentially the web version wrapped in an app). If you are coming from the old app
Sarah continued, "Don't worry, I've heard the new version is much better. It's more streamlined, and the features are amazing. Why don't I help you upgrade to the latest version?" The familiar ribbon interface, the customizable quick access
As users transition to Windows 11, many find themselves reluctant to leave behind a trusted companion: an older version of Microsoft Outlook, such as Outlook 2010, 2013, or 2016. Whether driven by nostalgia for a simpler interface, the need to support legacy add-ins, or simply a desire to avoid a subscription-based model, the question arises: Can I install and run an old Outlook version on Windows 11?
Windows 11 often hides the old version rather than removing it. You might have both versions currently on your PC: Press the and type "Outlook."
Click on to open the older, more feature-rich version.