How to Fix Copilot Buttons Missing in Classic Outlook for Windows

lakeisaa 2026-10-21 7 min read Verified Oct 2026

Puzzled man at a laptop in a home office

You open Outlook on your Windows PC to have Copilot summarise a long email thread, but the Copilot button isn’t there. It’s gone from the top-right corner above the ribbon and from the app bar on the left. If you try to add it back, it either won’t open or shows up greyed out. Copilot still works in Word, in the Copilot app and in Outlook in your web browser. Only desktop Outlook has lost it. The good news is that Microsoft has confirmed this was a bug and marked it fixed on October 15, 2026. This guide shows you how to get Copilot back, starting with the quickest fixes.

Why this happens

Microsoft lists this as a known issue in classic Outlook for Windows, which is the older desktop version of Outlook with the full File menu. It started after classic Outlook updated to build 20026.20182 or later. It affects people whose account shows a Copilot Chat (Basic) or M365 Copilot (Premium) label. Those are the Copilot labels for work and school accounts.

Microsoft lists these symptoms:

The Copilot button is missing from the top-right area above the ribbon.
The Copilot icon is missing from the left app bar or the More Apps area.
Copilot appears under Add Apps, but clicking Open does nothing.
If you try to add Copilot to the ribbon yourself, the command is greyed out.

The cause was in your Outlook profile. A profile is the set of accounts, data files and settings that classic Outlook loads when it starts. On affected PCs, Outlook couldn’t read some account details it needed from the profile. Earlier reports pointed to your email address being one of them. Without those details, Copilot couldn’t save its settings, so its button never appeared.

This bug has been back before. Microsoft said it had fixed it in June, started investigating again in September when it came back, and has now marked it fixed again. Microsoft also points out that a missing Copilot button can have other causes too, such as your licence, your update channel or your privacy settings. If the fix doesn’t bring the button back, those are covered below.

Quick fixes to try first

Restart Outlook properly. Close Outlook, wait a minute, then open it again. If that doesn’t help, restart your PC so that no hidden copy of Outlook is still running.
Update Office. In classic Outlook, go to File > Office Account > Update Options > Update Now.
Turn on “Show Apps in Outlook”. Go to File > Options > Advanced. Under Outlook panes, tick Show Apps in Outlook.
Use another version of Outlook for now. Microsoft says this bug doesn’t affect the new Outlook for Windows or Outlook on the web, so you can use Copilot there while you sort out the desktop app.

Step-by-step fixes

Fix 1: Check your Outlook version and install updates

Microsoft hasn’t said exactly how the fix reaches your PC. Being on the latest build is still the first thing Microsoft recommends for a missing Copilot button.

In classic Outlook, click File, then Office Account.
Look under Product Information. The version and build number are shown there or under the About Outlook button. That tells you whether you’re on build 20026.20182 or later.
Click Update Options > Update Now. If you only see Enable Updates, click that first.
When it says “You’re up to date!” or “Updates were installed”, close Outlook and open it again.

Note: If there’s no Update Options button, only About, then your organisation controls Office updates. In that case, contact your IT help desk.

Fix 2: Refresh your licence

Sometimes Office hasn’t picked up that you’re allowed to use Copilot. Refreshing your licence makes it check again.

Open the account page: in Outlook it’s File > Office Account, and in Word or Excel it’s File > Account.
Click Update License. If Outlook doesn’t show this button, do it from Word or Excel instead.
Close all Office apps and open Outlook again.

Fix 3: Make sure “Show Apps in Outlook” is on

This setting isn’t part of the bug, but if it’s switched off, Copilot won’t appear in the app bar.

Click File > Options.
Choose Advanced.
Under Outlook panes, tick Show Apps in Outlook, then click OK.
Restart Outlook.

Fix 4: Check your privacy settings

Two privacy switches can hide Copilot in every Office app.

Go to File > Office Account (or File > Account in Word).
Under Account Privacy, click Manage Settings.
Make sure Experiences that analyze your content is turned on.
Scroll down and make sure All connected experiences is turned on.
Restart Outlook.

On a work computer, your IT team may control these settings, and you might not be able to change them yourself.

Fix 5: Create a new Outlook profile

This is Microsoft’s official workaround, and it goes straight at the cause. A new profile gives Outlook a fresh, complete copy of your account details. Your old profile stays on the PC, so you can switch back if you need to.

Close Outlook.
Hold down Shift while you start Outlook. Another way: right-click the Start button, choose Run, type Outlook.exe /profiles and press Enter.
In the profile window, click Options.
If you want to pick a profile each time Outlook starts, tick the box that asks you to choose a profile. This makes it easy to go back to the old one.
Click New, type a name such as “Outlook New”, and click OK.
Add your email account when asked and sign in.
Open Outlook with the new profile and check for the Copilot button.

Work and Microsoft 365 email is stored online, so it will download again into the new profile. With a large mailbox this can take a while. If you keep any email in local data files (files ending in .pst), you’ll need to add those to the new profile yourself. On a work PC, ask IT to help.

Fix 6: Check your Copilot licence and update channel

If you still don’t see Copilot, check that your account includes it and that your PC gets the right kind of updates.

Sign in at m365.cloud.microsoft and scroll to the bottom of the home page. The label under your name shows your Copilot access, for example Copilot Chat (Basic) or M365 Copilot (Premium).
In Outlook, go to File > Office Account and look under Product Information.
If it mentions Semi-Annual Enterprise Channel, your PC gets Office updates only every six months, and Copilot isn’t available on that schedule. Ask your IT team to move you to Current Channel or Monthly Enterprise Channel.

When to contact support

Ask for help if you’ve installed updates, restarted, turned on Show Apps in Outlook and tried a new profile, and Copilot still isn’t there.

Work or school account: Contact your IT help desk. They can check that your licence is assigned, see which update channel you’re on, and look for policies that hide Copilot. Tell them your Outlook build number and what you’ve already tried.
Personal Microsoft 365 account: Contact Microsoft Support through the Microsoft support website.

FAQ

Has Microsoft removed Copilot from classic Outlook?

No. This was a bug, not a planned change. Copilot is still supported in classic Outlook, and Microsoft has marked this issue as fixed.

Microsoft says it’s fixed, so why can’t I see the button?

Your PC may not have the latest update yet, or your profile may still have the problem. Install updates, restart, and try a new profile if needed. If none of that works, the cause is probably something else, like your licence, update channel or privacy settings.

Will creating a new Outlook profile delete my email?

No. Your old profile stays where it is, and work or Microsoft 365 email downloads again from the server. The only thing to watch is local .pst files, which you’ll need to add to the new profile yourself.

I have Microsoft 365 Family. Why can’t I see Copilot?

Microsoft’s notice about this bug talks about work and school Copilot labels. For home plans, there’s a separate rule: only the subscription owner can use Copilot in the desktop apps. People who share a Family plan won’t see it.

Sources

#Classic Outlook #Copilot #Known issues #Microsoft 365 #Outlook #Windows

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