‘New teams meeting’ button disappeared from MS Outlook

If the “New Teams Meeting” button has disappeared from Microsoft Outlook, it’s usually due to the Teams Meeting Add-in becoming disabled, failing to load, or not being installed properly. Here’s how to methodically troubleshoot and restore it:

STEP 1: Check If the Add-in Is Disabled

1. Open Outlook.
2. Go to File > Options > Add-ins.
3. Look at the bottom of the window where it says “Manage: COM Add-ins” and click Go.
4. In the list, look for:
   • Microsoft Teams Meeting Add-in for Microsoft Office
5. Ensure it is checked.
   • If it is unchecked, check it and click OK.
   • If it’s missing, go to Step 2.

STEP 2: Re-enable the Add-in from Disabled Items

1. In Outlook, go to File > Options > Add-ins.
2. At the bottom where it says “Manage”, select Disabled Items from the dropdown and click Go.
3. If you see Microsoft Teams Meeting Add-in, select it and click Enable.
4. Restart Outlook.

STEP 3: Make Sure Microsoft Teams Is Installed and Running

The Teams add-in depends on the Teams desktop client.

• Ensure Microsoft Teams is installed and up to date.
• Open Teams, log in, and leave it running.
• Then restart Outlook.

STEP 4: Repair Office (If Add-in Is Missing)

If the Teams add-in doesn’t show up at all:

1. Go to Control Panel > Programs and Features.
2. Find Microsoft Office > Right-click > Change > choose Quick Repair.
3. If that fails, try Online Repair (note: this takes longer and requires internet).

STEP 5: Registry Fix (Advanced)

If you’re managing this in an organization or something has disabled the add-in at the policy level, you can check the registry:

1. Open Registry Editor (regedit.exe)
2. Navigate to: HKEY_CURRENT_USER\Software\Microsoft\Office\Outlook\Addins\TeamsAddin.FastConnect
3. Make sure:
   • LoadBehavior is set to 3 (if it’s 0, it won’t load)
   • If the key is missing, you can reinstall Teams.

Last Resort: Reinstall Teams

1. Uninstall Microsoft Teams.
2. Reboot your PC.
3. Reinstall the latest version of Teams from the official site.
4. Reopen Outlook and check again.

Bonus: Add the Button Back Manually (Ribbon Customization)

If the add-in is enabled but the button is just not showing:

1. Go to File > Options > Customize Ribbon.
2. On the right pane, click the Calendar tab (or Home (Calendar)).
3. Add the Teams Meeting command manually from the left list.

Let me know if you want to deploy a script to check/fix this across multiple users or in a domain environment.