How to go back to copilot prev version

Rolling back just Copilot in Word to an earlier version is not supported. However, there are two practical options to make the new Copilot experience less intrusive or effectively “off”:

1. Turn off Copilot in Word
   • In Word on Mac: go to Word > Preferences.
   • In the Authoring & Proofing Tools group, select Copilot.
   • Clear the Enable Copilot checkbox.
   • Copilot will be disabled (the button may remain but will be dimmed and inactive).
   On Windows, a similar Enable Copilot checkbox exists (starting with specific builds) in each app; clear Enable Copilot in Word to turn it off on that device.
2. Use a classic/Office-only plan (no Copilot)
   • If using a Microsoft 365 subscription that includes Copilot and the new AI features are not wanted at all, switch to a classic plan that only includes the standard Office apps.
   • Sign in to the Microsoft account at the services page, open the current Microsoft 365 subscription, choose Manage subscription, then Cancel subscription.
   • During cancellation, select the option to switch back to the classic plan (which keeps the standard Office apps without Copilot features at the same price level described in the referenced guidance).

There is no supported way in the provided information to install an older Copilot build while keeping the rest of Word current; the supported paths are to disable Copilot in the app or move to a classic plan without Copilot.

References:

• Turn off Copilot in Microsoft 365 apps
• How to find and enable missing Copilot button in Microsoft 365 apps
• How to disable co-pilot on Mac - Microsoft Q&A
• How do I change to classic subscription (without Copilot)? - Microsoft Q&A