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Calendar Problems

How to Return to Classic Outlook and Use the Older Calendar

Elise WilliamsElise Williams Sep 29, 2026 869 views

Question details

The user wants to switch back to the Classic Outlook interface to use the older calendar view but cannot locate the older version in their current profile.

How to Return to Classic Outlook and Use the Older Calendar
Product
Microsoft Outlook
Device & OS
Windows
Scenario
The user is currently using the New Outlook interface and wishes to restore the familiar classic layout and older calendar functionalities.
Observed behavior
The Classic Outlook interface is missing or hidden, and the user is forced to use the New Outlook calendar layout without an obvious way back.
Before you start

Before attempting to revert, check if you are using a Microsoft 365 subscription account, as reverting to Classic Outlook may require standard desktop app permissions if the toggle is disabled.

Solution 1Recommended

Use the 'New Outlook' Toggle Switch

The most common way to return to the classic calendar is by using the built-in toggle switch within the New Outlook interface.

Microsoft provides a simple toggle switch to allow users to transition seamlessly between the New and Classic Outlook interfaces. Note that this option is typically available for users with a standard Microsoft 365 license.

1
Open New Outlook

Launch the New Outlook application on your Windows computer.

2
Locate the Toggle

Look at the top-right corner of the application window for a toggle switch labeled 'New Outlook'.

3
Switch Off

Click the toggle to turn it off. The application will close and automatically reopen in the Classic Outlook interface, displaying your older calendar view.

Use the 'New Outlook' Toggle Switch
Instant Transition: Your emails and calendar appointments are stored on the server and will instantly appear once Classic Outlook finishes loading.
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Frequently Asked Questions

Why is the toggle to switch back to Classic Outlook missing?

The toggle might be missing if your organization's IT administrator has disabled it, or if you are using the free Windows Mail app replacement rather than a licensed Microsoft 365 desktop version of Outlook.

Will switching back to Classic Outlook delete my emails or calendar events?

No, your emails and calendar data are synced securely to your email server. Switching between New and Classic Outlook only changes the interface you use to view them, leaving your actual data untouched.

How long will Classic Outlook continue to be supported?

Microsoft continues to support Classic Outlook for Windows, but the exact timeline depends on your specific Microsoft 365 subscription and enterprise update channels. They generally provide advance notice before entirely phasing out classic applications.