How to Return to Classic Outlook and Use the Older Calendar
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.

- 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 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.
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.
Launch the New Outlook application on your Windows computer.
Look at the top-right corner of the application window for a toggle switch labeled 'New Outlook'.
Click the toggle to turn it off. The application will close and automatically reopen in the Classic Outlook interface, displaying your older calendar view.

Switch via the Help Menu
If the top-right toggle is missing, the Help menu often provides an alternative method to revert to the classic interface.
Reinstall Classic Outlook from Microsoft 365
When neither the toggle nor the Help menu option is available, you may need to install the classic desktop application from your Microsoft account.
Try WPS Office for a Clean and Familiar Interface
If navigating through constantly changing Microsoft Office interfaces is affecting your productivity, try WPS Office. It provides a stable, user-friendly workspace that feels familiar instantly while maintaining seamless compatibility with all standard office formats.
- 1. Download WPS Office: Visit the official WPS Office website and download the free installation package for your device.
- 2. Install the Suite: Run the installer and follow the simple on-screen prompts to set up the lightweight office suite.
- 3. Enjoy a Stable Workspace: Open WPS Office and instantly access your documents with a classic, easy-to-use interface that won't suddenly change.

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.




