Microsoft is still trying to fix missing Copilot buttons in Classic Outlook
Microsoft says some Windows users may not see the Copilot and Copilot Chat buttons in the classic version of Outlook, and the company is still working on the problem. This appears to be a product issue, not a sign that a personal account or device has been taken over.
Who is at risk
People using classic Outlook on Windows who rely on Copilot features for email help are most affected.
What to watch for
Watch for the Copilot or Copilot Chat buttons suddenly disappearing from classic Outlook even though they were available before.
What to do
If the buttons are missing, avoid clicking random fix guides or downloading unofficial tools, and instead check Microsoft’s official support updates or contact your workplace IT team.