How can I disable Copilot completely in my Outlook WEB interface?

Stan.L's reply says, "Currently, the option to turn off Copilot is provided in the Office desktop application, but this option has not yet been deployed to Outlook web."

Can I get some clarification on this part? I'm running Outlook 2019 - specifically "Microsoft® Outlook® 2019 MSO (Version 2505 Build 16.0.18827.20102) 64-bit" (copied directly from the About dialog) - on Windows 10, and just noticed this "Copilot" showing up in the top-right corner. I don't see an option to turn this off, and Google isn't showing any accurate results either, but you say it's an option, so I'm hoping I'm just missing it; can you show me where the option is? (I've already uninstalled the Copilot application and restarted Outlook, but it's still there.)

Thank you!

EDIT (7/9/25): I'm happy to report that this reply from Gabriel on another thread fixed the issue on Outlook desktop.

Stan, Will I lose Publisher if I downgrade from office 365 to Personal or Family Classic?

I completely share karnaf's frustration.

Thank you for your assistance.

Rachel

Hi PMK2025,

I am not an expert in Microsoft 365 subscriptions, but I focus on providing technical support. The solutions I provide are all from Microsoft support articles that are publicly available on the Internet. I am afraid that I can't provide more details about the subscription downgrade.

If you cannot downgrade your subscription to a version without copilot according to the instructions in the article, please contact online support: steps mentioned in the first reply of this post Remove Copilot - Microsoft Community

Feel free to contact me if you have any questions, I am here to help you further if needed.

Best Wishes,

Stan.L - MSFT | Microsoft Community Support Specialist