Using classic Outlook for Windows in business environments
If Copilot disappeared from classic Outlook for Windows, this matches a known issue affecting classic Outlook after updating to build 20026.20182 and higher. In affected cases, Copilot entry points can be missing, unavailable, or grayed out.
Use these supported workarounds:
- Use new Outlook or Outlook on the web as a temporary workaround.
- Create a new Outlook profile in classic Outlook.
- Turn on Show Apps in Outlook:
- Go to File > Options
- Select Advanced
- Under Outlook panes, check Show Apps in Outlook
If Copilot is missing more generally in Microsoft 365 apps, also check these:
- Update Office to the latest build.
- Refresh the license:
- Open any Microsoft 365 app
- Go to File > Account
- Select Update License
- Close and restart all Microsoft 365 apps
- Check the update channel:
- In any Microsoft 365 app, go to File > Account
- If the product information shows Semi-Annual Enterprise Channel, Copilot features are not available there
- Copilot requires Current Channel or Monthly Enterprise Channel
- Check privacy settings:
- Go to File > Account > Manage Settings under Account Privacy
- Make sure Experiences that analyze your content is turned on
- Make sure All connected experiences is turned on
If the goal is specifically to get Copilot back on the ribbon in classic Outlook, the most relevant actions are:
- confirm whether Outlook is on build 20026.20182 or later
- enable Show Apps in Outlook
- create a new Outlook profile if the button is still missing
- use new Outlook or OWA until Microsoft resolves the issue