Using Classic Outlook on Windows for personal email, calendar, and contact management
On Windows:
Open the New Outlook app.
Look at the top-right corner of the window for the "Try the new Outlook" toggle switch. Alternatively, click Help > Go to classic Outlook if available.
Turn the toggle OFF.
Choose "Switch back to classic Outlook" when prompted and provide feedback if requested.
Note: If you cannot find the toggle or classic Outlook does not open, open your Windows Start menu, search for Outlook (classic), or reinstall the classic desktop application from your Microsoft 365 account portal.
On Mac:
Open Outlook for Mac.
Click on Help in the top menu bar.
Select Revert to Legacy Outlook (or toggle off the New Outlook option if available in your version).