Microsoft changing how switching between New and Classic Outlook works in Windows

Microsoft has finally concerns among IT admins and users regarding the New Outlook for Windows. The latest update, detailed in an official Microsoft article shared on LinkedIn by the company’s 365 Specialist, Albert van Grondelle, hints at usability improvements designed to make switching between the Classic and New Outlook much less of a hassle.

Had problems switching between New Outlook to Classic on Windows? Microsoft is updating things for you

Multiple users have been com plaining about how much they’re frustrated by the New Outlook’s limitations, including the lack of PST file support and offline functionality.

Making it even more worse, Microsoft’s previously rigid transition process forced users to switch out of New Outlook entirely. This happened everytime when they wanted to return to Classic Outlook. But now, Microsoft says it’s changing that behavior, and for the better.

“Before this rollout, if users switch from classic Outlook to new Outlook, they must switch back to use classic Outlook again,” reads Micrsoft’s article. A part of the article further also reads:

After this rollout, users will be able to use Classic Outlook without switching out of New Outlook. When users select the toggle in new Outlook, they will have the option to open classic Outlook or switch back to classic Outlook.

Also read: Microsoft addresses Outlook web search issues with latest fix

This update means users will no longer have to fully exit the New Outlook to access the Classic version. If a user chooses to open Classic Outlook, it will launch immediately while the New Outlook remains open. Alternatively, choosing to switch back will minimize New Outlook to the taskbar and bring up Classic Outlook, allowing both apps to coexist during the session.

This will be a phased rollout

Microsoft has has mentioned that it will be a two-phase roll out. In the first phase (Mid to Late May 2025), “The default behavior to minimize New Outlook after switching will begin rolling out globally (including GCC tenants).“

In the second and final phase (Early June to Late July 2025), “Users will be able to open Classic Outlook without leaving New Outlook,” notes the company.

Also read: Microsoft to fix CPU spike bug plaguing Classic Outlook in May