Disable Copilot in Outlook Fast

Applies to: Outlook for Microsoft 365 on Windows (current channel), Outlook for Mac (notes included), and Outlook on the web where the Copilot button appears.

Problem: You see Copilot in Outlook and want it gone.
Likely causes: The per-app Enable Copilot toggle is on, or Outlook is allowed to use connected experiences that analyze your content.
Fix set: Turn Copilot off in Outlook Options, block connected experiences, hide the ribbon button, or enforce it with policy/registry (admins).

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Before you start

• Account type: Some steps require an administrator (tenant-wide control).
• Back up first: If you’ll touch policy/registry, create a restore point using 3 ways to create a restore point and review how to open the Registry Editor plus how to navigate the registry.
• Tools you may use: Local Group Policy Editor – see how to open gpedit and what it is.

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Method 1 — Turn off Copilot inside Outlook (fastest, per-app)

1. Open Outlook.
2. Go to File → Options → Copilot.
3. Uncheck “Enable Copilot.”
4. Select OK, then restart Outlook.

What it does: Disables Copilot only for Outlook on this device. Repeat in Word/Excel/PowerPoint if you want it off there too.

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Method 2 — Block Copilot via Outlook privacy controls (no admin needed)

Use the same privacy settings Copilot relies on.

Windows (Microsoft 365):

1. File → Account → Account Privacy → Manage Settings.
2. Turn off Connected experiences that analyze your content (and, optionally, Optional connected experiences).
3. Restart Outlook.

Trust Center path (alternate builds):

1. File → Options → Trust Center → Trust Center Settings → Privacy Options → Privacy Settings…
2. Uncheck optional/analysis experiences → OK → OK → restart.
   For help finding Trust Center, see the navigation used in how to enable macros in Excel (same Trust Center entry point).

Note: Turning off content-analysis experiences also impacts Word, Excel, PowerPoint, etc. That’s useful if you want Copilot off across Office.

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Method 3 — Hide the Copilot button from the Outlook ribbon (UI only)

1. Right-click the ribbon → Customize the Ribbon.
2. In Home (Mail), locate the Copilot group (name may vary by build).
3. Uncheck or remove the group → OK.

Important: This hides the button but does not disable Copilot features if they remain allowed. Use Method 1 or 2 for enforcement.

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Method 4 — Outlook on the web (OWA): hide Copilot in the toolbar

1. Open Outlook on the web → select the Settings (gear).
2. Choose Customize actions (or Mail → Customize actions).
3. Under Toolbar, turn off Copilot and save.

Tip: If your org enforces Copilot, the toggle may be locked by policy (see Method 5).

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Method 5 — Admin: turn off Copilot for users (tenant-wide)

Best for Microsoft 365 Business/Enterprise environments.

• Licenses: Unassign the Copilot for Microsoft 365 add-on from targeted users/groups.
• Service/app availability: In the Microsoft 365 Admin/Apps Admin Center, disable Copilot availability for selected users or groups.
• Policy (Cloud Policy/Intune/GPO): Deploy Office policy to turn off connected experiences that analyze content (and, if needed, optional connected experiences) for Outlook and the rest of Microsoft 365 Apps.

If you prefer on-device policy, open the editor with how to open gpedit and apply the Microsoft 365 Apps privacy templates.

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Method 6 — Group Policy or Registry (IT enforcement on Windows PCs)

Group Policy (device or user scope):

• Use Microsoft 365 Apps policy to disable connected experiences that analyze content (optionally all/optional connected experiences).
• After applying, run gpupdate /force, then have users restart Outlook.

Registry (when policy editors aren’t available):

• Set the Office privacy policy values that turn off analysis/optional experiences (device or user scope), then restart Outlook.
• If you’re new to registry work, review how to open regedit and navigate the registry first.

Pro tip: If Outlook feels unresponsive after changes, restart the app from Task Manager; here are 7 ways to open Task Manager in Windows.

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Verify Copilot is disabled

• The Copilot button is gone or greyed out in Outlook.
• No Copilot pane/suggestions appear when composing or reading mail.
• If you disabled content-analysis experiences, Copilot is unavailable across Office apps on that device/account.

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Undo or change scope later

• Per-app: Return to File → Options → Copilot and re-enable.
• Privacy: Turn connected experiences back on and restart Outlook.
• Org-wide: Reassign licenses or relax policy in the admin center.

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Troubleshooting

• You don’t see “Copilot” in Options. Update Outlook; some channels added a dedicated Copilot page more recently.
• Button hides, prompts still show. Hiding the ribbon entry doesn’t disable features. Use Method 1 or 2.
• Managed device: If Account Privacy or Trust Center switches are locked, your admin enforces policy—see Method 5.
• You meant Windows Copilot, not Outlook. Use the Windows guide and its policies; start with how to open gpedit or how to open regedit.

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Summary (at a glance)

1. Outlook Options → Copilot → disable (fastest).
2. Account Privacy/Trust Center: turn off connected experiences that analyze your content (blocks Copilot features).
3. Hide the ribbon button (UI only).
4. Admin: remove licenses or enforce with policy/registry.
5. Web: Settings → Customize actions to remove the Copilot icon.

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