PowerPoint Teams Live Share Does Not Start: Fix

You click the Teams Live Share button in PowerPoint, but nothing happens. The presentation does not open in Teams, or you see an error message instead of a live session. This problem usually occurs because of missing Microsoft Teams updates, incorrect account permissions, or a blocked add-in in PowerPoint. This article explains the root cause of the failure and provides step-by-step fixes to get Live Share working again.

Why PowerPoint Teams Live Share Does Not Start

Teams Live Share is a feature that lets you present a PowerPoint slide show directly inside a Teams meeting. When it fails to start, the cause is almost always one of three things: outdated software, mismatched accounts, or a disabled add-in.

Live Share relies on a COM add-in that communicates between PowerPoint and Teams. If this add-in is turned off, PowerPoint cannot send the slides to Teams. Similarly, if either Teams or PowerPoint is missing a required update, the communication protocol fails silently. Account mismatch means that even if both apps are updated, they will not recognize each other if signed in under different tenants or user IDs.

Software Version Requirements

Microsoft Teams desktop app version 1.6.00.4471 or later is required. PowerPoint for Microsoft 365 must be version 2209 or later. PowerPoint 2021, 2019, and earlier versions do not support Live Share at all. If you are using the free web version of Teams or PowerPoint, Live Share is not available.

Account and License Requirements

Both PowerPoint and Teams must be signed into the same Microsoft 365 work or school account. Personal Microsoft accounts like Outlook.com or Hotmail do not support Live Share. The organization must also have a license that includes Teams and the PowerPoint desktop app. Guest accounts in Teams cannot start a Live Share session.

Steps to Fix PowerPoint Teams Live Share Not Starting

Method 1: Update Microsoft Teams and PowerPoint

1. Update Teams
   Open Microsoft Teams. Click the three-dot menu next to your profile picture in the top right. Select Check for updates. Teams will download and install any available updates. Restart Teams after the update completes.
2. Update PowerPoint
   Open PowerPoint. Go to File > Account > Update Options > Update Now. Wait for the update to finish. Restart PowerPoint.
3. Verify versions
   In Teams, click the three-dot menu and select About Teams. Confirm the version is 1.6.00.4471 or higher. In PowerPoint, go to File > Account and check the version number under About PowerPoint. It must be 2209 or later.

Method 2: Verify Account Consistency

1. Check Teams account
   In Teams, click your profile picture. Look at the email address shown. Write it down.
2. Check PowerPoint account
   In PowerPoint, go to File > Account. Under User Information, note the email address.
3. Match the accounts
   If the email addresses differ, sign out of one app and sign in again using the same work or school account. To sign out in PowerPoint, go to File > Account > Sign Out. In Teams, click your profile picture and select Sign Out. Sign in to both with the same credentials.

Method 3: Enable the Live Share Add-in in PowerPoint

1. Open PowerPoint add-in settings
   Go to File > Options > Add-ins. At the bottom of the dialog, find the Manage dropdown. Select COM Add-ins and click Go.
2. Enable Live Share
   In the COM Add-ins list, look for Microsoft Teams Live Share or Microsoft Teams Presentation. Check the box next to it. Click OK.
3. Restart PowerPoint
   Close and reopen PowerPoint. The Live Share button should appear in the Slide Show tab under the Start Slide Show group.

Method 4: Clear Teams Cache

1. Close Teams completely
   Right-click the Teams icon in the system tray and select Quit. Also end any Teams processes in Task Manager.
2. Delete cache folder
   Press Win + R, type %appdata%\Microsoft\Teams, and press Enter. Delete the contents of the folder that opens. Do not delete the folder itself.
3. Restart Teams
   Open Teams again. It will rebuild the cache. Sign in and try Live Share from PowerPoint.

If PowerPoint Live Share Still Does Not Start

Live Share button is grayed out

The button appears dimmed when you are not in a Teams meeting. You must join or start a Teams meeting first. Once the meeting window is open, switch to PowerPoint. The Live Share button should become active.

Error message says Live Share is not available for this file

Live Share supports only .pptx files. It does not work with .ppt, .pps, .pot, or password-protected files. Save the file as a .pptx file by going to File > Save As and choosing PowerPoint Presentation (.pptx). Remove any password protection before attempting Live Share.

Live Share starts but slides do not appear in Teams

This usually happens when the Teams meeting was created from the web app instead of the desktop app. Close the meeting, open Teams desktop, start or rejoin the meeting from there, and then try Live Share again.

IT administrator has blocked Live Share

Some organizations disable Live Share via Group Policy or the Microsoft 365 admin center. If none of the above fixes work, contact your IT department. Ask them to verify that the policy for Allow PowerPoint Live Share is enabled in the Teams admin center under Meetings > Meeting policies.

PowerPoint Live Share vs Presenter Mode in Teams: Key Differences

Item	PowerPoint Teams Live Share	Teams Presenter Mode (Share Screen)
Description	Integrates directly with PowerPoint to send slides to Teams meeting	Shares your entire screen or a window via Teams
Slide transitions	Viewers see animations and transitions smoothly	Viewers see the screen as a video feed; animations may lag
Presenter notes	Only the presenter sees notes on their monitor	Viewers can see presenter notes if the window is shared
Audience interaction	Attendees can advance slides on their own if the presenter allows	Attendees only see what the presenter shows
File format required	.pptx only	Any file or window
Software version	Teams 1.6.00.4471+, PowerPoint 2209+	Any Teams version

Teams Live Share offers a more polished presentation experience with smooth animations and private notes. Screen sharing works on any file but lacks the same level of integration. If you frequently present to large audiences, Live Share is the better choice. If you only need to share a static document, screen sharing is simpler.

After applying the fixes in this article, you should be able to start a Live Share session from PowerPoint. Test the feature with a simple .pptx file in a test meeting before your actual presentation. As an advanced tip, you can use the keyboard shortcut Alt+S in PowerPoint to start the slide show and then immediately click Live Share to begin broadcasting without lifting your hands from the keyboard.