Hi All, I am having Mac OS X version 10.9.5 and not able to install Microsoft Teams App as it needs OS X version 10.10 or later. It is not easy to get my Mac OS X 10.9.5 upgraded to latest OS. Mar 27, 2020 Microsoft Teams is a workspace for collaborative teamwork in Office 365. Discover how teams can achieve more by managing files, apps, and chats in a single place. Convenient chat for modern teams. Boost your team’s productivity and communication using a threaded chat in Microsoft Teams. Share files and chat in one-to-one or group conversations. ‎Read reviews, compare customer ratings, see screenshots, and learn more about Microsoft Remote Desktop 10. Download Microsoft Remote Desktop 10 for macOS 10.12 or later and enjoy it on your Mac. ‎Use Microsoft Remote Desktop for Mac to connect to a remote PC or virtual apps and desktops made available by your admin.

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Microsoft Teams has clients available for desktop (Windows, Mac, and Linux), web, and mobile (Android and iOS). These clients all require an active internet connection and do not support an offline mode.

Microsoft Teams puts Microsoft back on the ‘must-have’ software map, and could become the bridge the connects the old world with the new world. Unlike past product offerings, Microsoft Teams has made it easy to integrate newer (non-Microsoft) apps side-by-side with trusted enterprise apps like Office365 and SharePoint. Feb 27, 2020 The Microsoft Teams desktop client is a standalone application and is also available in Office 365 ProPlus.Teams is available for 32-bit and 64-bit versions of Windows (8.1 or later) and Windows Server (2012 R2 or later), as well as for macOS (10.10 or later) and Linux (in.deb and.rpm formats).

Note

Effective November 29, 2018, you'll no longer be able to use the Microsoft Teams for Windows 10 S (Preview) app, available from the Microsoft Store. Instead, you can now download and install the Teams desktop client on devices running Windows 10 S mode. To download the desktop client, go to https://teams.microsoft.com/downloads. MSI builds of the Teams desktop client are not yet available for devices running Windows 10 S mode.

For more information about Windows 10 S mode, see Introducing Windows 10 in S mode.

Desktop client

Tip

Watch the following session to learn about the benefits of the Windows Desktop Client, how to plan for it, and how to deploy it: Teams Windows Desktop Client

The Microsoft Teams desktop client is a standalone application and is also available in Office 365 ProPlus. Teams is available for 32-bit and 64-bit versions of Windows (8.1 or later) and Windows Server (2012 R2 or later), as well as for macOS (10.10 or later) and Linux (in .deb and .rpm formats). On Windows, Teams requires .NET Framework 4.5 or later; the Teams installer will offer to install it for you if you don't have it. On Linux, package managers such as apt and yum will try to install any requirements for you. However, if they don't then you will need to install any reported requirements before installing Teams on Linux.

The desktop clients provide real-time communications support (audio, video, and content sharing) for team meetings, group calling, and private one-on-one calls.

Desktop clients can be downloaded and installed by end users directly from https://teams.microsoft.com/downloads if they have the appropriate local permissions (admin rights are not required to install the Teams client on a PC but are required on a Mac).

IT admins can choose their preferred method to distribute the installation files to computers in their organization. Some examples include Microsoft Endpoint Configuration Manager (Windows) or Jamf Pro (macOS). To get the MSI package for Windows distribution, see Install Microsoft Teams using MSI.

Note

Distribution of the client via these mechanisms is only for the initial installation of Microsoft Team clients and not for future updates.

Windows

The Microsoft Teams installation for Windows provides downloadable installers in 32-bit and 64-bit architecture.

Note

The architecture (32-bit vs. 64-bit) of Microsoft Teams is agnostic to the architecture of Windows and Office that is installed.

The Windows client is deployed to the AppData folder located in the user’s profile. Deploying to the user’s local profile allows the client to be installed without requiring elevated rights. The Windows client leverages the following locations:

Then I reinstalled from my Office 365 login page, and have yet to reproduce the issue.Hope that helps. The Microsoft rep was not able to help me with this issue, but the solution I found myself was just to uninstall and reinstall the Office 365 suite. To uninstall, I moved all Office programs to the Trash, emptied it, then navigated to LibraryContainers and then deleted all of the pertinent com.microsoft folders, as well as all Microsoft folders located in LibraryGroup Containers (UBF8T346. Microsoft outlook for mac updates.

• %LocalAppData%MicrosoftTeams

• %LocalAppData%MicrosoftTeamsMeetingAddin

• %AppData%MicrosoftTeams

• %LocalAppData%SquirrelTemp

When users initiate a call using the Microsoft Teams client for the first time, they might notice a warning with the Windows firewall settings that asks for users to allow communication. Users might be instructed to ignore this message because the call will work, even when the warning is dismissed.

Note

Windows Firewall configuration will be altered even when the prompt is dismissed by selecting “Cancel”. Two inbound rules for teams.exe will be created with Block action for both TCP and UDP protocols.

Mac

Mac users can install Teams by using a PKG installation file for macOS computers. Administrative access is required to install the Mac client. The macOS client is installed to the /Applications folder.

Install Teams by using the PKG file

1. From the Teams download page, under Mac, click Download.
2. Double click the PKG file.
3. Follow the installation wizard to complete the installation.
4. Teams will be installed to /Applications folder. It is a machine-wide installation.

Note

During the installation, the PKG will prompt for admin credentials. The user needs to enter the admin credentials, regardless of whether or not the user is an admin.

If a user currently has a DMG installation of Teams and wants to replace it with the PKG installation, the user should:

1. Exit the Teams app.
2. Uninstall the Teams app.
3. Install the PKG file.

IT admins can use managed deployment of Teams to distribute the installation files to all Macs in their organization, such as Jamf Pro.

Note

If you experience issues installing the PKG, let us know. In the Feedback section at the end of this article, click Product feedback.

Linux

Users will be able to install native Linux packages in .deb and .rpm formats.Installing the DEB or RPM package will automatically install the package repository

• DEB https://packages.microsoft.com/repos/ms-teams stable main
• RPM https://packages.microsoft.com/yumrepos/ms-teams

The signing key to enable auto-updating using the system's package manager is installed automatically. However, it can also be found at: (https://packages.microsoft.com/keys/microsoft.asc). Microsoft Teams ships monthly and if the repository was installed correctly, then your system package manager should handle auto-updating in the same way as other packages on the system.

Note

If you find a bug, submit it using Report a Problem from within the client. For known issues, see Known Issues.For Teams for Linux support you can use the Linux forum support channel on Microsoft Q&A. Be sure to use the teams-linux tag when posting questions.

Install Teams using DEB package

1. Download the package from https://aka.ms/getteams.
2. Install using one of the following:
   • Open the relevant package management tool and go through the self-guided Linux app installation process.
   • Or if you love Terminal, type: sudo apt install **teams download file**

You can launch Teams via Activities or via Terminal by typing Teams.

Install Teams using RPM package

1. Download the package from https://aka.ms/getteams.
2. Install using one of the following:
   • Open the relevant package management tool and go through the self-guided Linux app installation process.
   • Or if you love Terminal, type: sudo yum install **teams download file**

You can launch Teams via Activities or via Terminal by typing Teams.

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Install manually from the command line

Install manually on Debian and Ubuntu distributions:

Install manually on RHEL, Fedora and CentOS based distributions:

Alternatively, to use yum instead of dnf:

Install manually on openSUSE based distributions:

Web client

The web client (https://teams.microsoft.com) is a full, functional client that can be used from a variety of browsers. The web client supports Calling and Meetings by using webRTC, so there is no plug-in or download required to run Teams in a web browser. The browser must be configured to allow third-party cookies.

Teams fully supports the following Internet browsers, with noted exceptions for calling and meetings.

Browser	Calling - audio, video, and sharing	Meetings - audio, video, and sharing12
Internet Explorer 11	Not supported	Meetings are supported only if the meeting includes PSTN coordinates. To attend a meeting on IE11 without PSTN coordinates, users must download the Teams desktop client. Video: Not supported Sharing: Incoming sharing only (no outgoing)
Microsoft Edge, RS2 or later	Fully supported, except no outgoing sharing	Fully supported, except no outgoing sharing
Microsoft Edge (Chromium-based), the latest version plus two previous versions	Fully supported	Fully supported
Google Chrome, the latest version plus two previous versions	Fully supported	Fully supported Sharing is supported without any plug-ins or extensions on Chrome version 72 or later.
Firefox, the latest version plus two previous versions	Not supported	Meetings are supported only if the meeting includes PSTN coordinates. To attend a meeting on Firefox without PSTN coordinates, users must download the Teams desktop client. Video: Not supported Sharing: Incoming sharing only (no outgoing)
Safari 11.1+	Not supported	Meetings are supported only if the meeting includes PSTN coordinates. To attend a meeting on Safari without PSTN coordinates, users must download the Teams desktop client. Video: Not supported Sharing: Incoming sharing only (no outgoing) Safari is enabled on versions higher than 11.1 in preview. While in preview, there are known issues with Safari's Intelligent Tracking Prevention.

¹ To give and take control of shared content during sharing, both parties must be using the Teams desktop client. Control isn't supported when either party is running Teams in a browser. This is due to a technical limitation that we're planning to fix. To learn more, read Allow a participant to give or request control.

² Blur my background isn't available when you run Teams in a browser. This feature is only available in the Teams desktop client.

Note

As long as an operating system can run the supported browser, Teams is supported. For example, running Firefox on the Linux operating system is an option for using Teams.

The web client performs browser version detection upon connecting to https://teams.microsoft.com. If an unsupported browser version is detected, it will block access to the web interface and recommend that the user download the desktop client or mobile app.

Mobile clients

The Microsoft Teams mobile apps are available for Android and iOS, and are geared for on-the-go users participating in chat-based conversations and allow peer-to-peer audio calls. For mobile apps, go to the relevant mobile stores Google Play and the Apple App Store. The Windows Phone App was retired July 20, 2018 and may no longer work.

In China, here's how to get Teams for Android.

Supported mobile platforms for Microsoft Teams mobile apps are the following:

• Android: Support is limited to the last four major versions of Android. When a new major version of Android is released, the new version and the previous three versions are officially supported.

• iOS: Support is limited to the two most recent major versions of iOS. When a new major version of iOS is released, the new version of iOS and the previous version are officially supported.

Note

The mobile version must be available to the public in order for Teams to work as expected.

Mobile apps are distributed and updated through the respective mobile platform’s app store only. Distribution of the mobile apps via MDM or side-loading is not supported by Microsoft. Once the mobile app has been installed on a supported mobile platform, the Teams Mobile App itself will be supported provided the version is within three months of the current release.

Decision Point	Are there any restrictions preventing users from installing the appropriate Microsoft Teams client on their devices?
Next Steps	If your organization restricts software installation, make sure that process is compatible with Microsoft Teams. Note: Admin rights are not required for PC client installation but are required for installation on a Mac.

Client update management

Clients are currently updated automatically by the Microsoft Teams service with no IT administrator intervention required. If an update is available, the client will automatically download the update and when the app has idled for a period of time, the update process will begin.

Client-side configurations

Currently, there are no supported options available to configure the client either through the tenant admin, PowerShell, Group Policy Objects or the registry.

Notification settings

There are currently no options available for IT administrators to configure client-side notification settings. All notification options are set by the user. The figure below outlines the default client settings.

Sample PowerShell Script

This sample script, which needs to run on client computers in the context of an elevated administrator account, will create a new inbound firewall rule for each user folder found in c:users. When Teams finds this rule, it will prevent the Teams application from prompting users to create firewall rules when the users make their first call from Teams.

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The Teams Meeting add-in lets users schedule a Teams meeting from Outlook. The add-in is available for Outlook on Windows, Mac, web, and mobile.

Teams Meeting add-in in Outlook for Windows

The Teams Meeting add-in is automatically installed for users who have Microsoft Teams and either Office 2010, Office 2013 or Office 2016 installed on their Windows PC. Users will see the Teams Meeting add-in on the Outlook Calendar ribbon.

Note

• There are additional considerations if your organization runs both Teams and Skype for Business. Under some circumstances, the Teams add-in is not available in Outlook. See Upgrade from Skype for Business to Teams for details.
• User permissions to execute the Regsvr32.exe file is a minimum requirement for the Teams Meeting add-in to be installed on the computer.
• If users do not see the Teams Meeting add-in, instruct them to close Outlook and Teams, then restart the Teams client first, then sign in to Teams, and then restart the Outlook client, in that specific order.
• If you are using an Office Outlook installation from the Microsoft Store, the Teams Meeting add-in isn't supported. Users who require this add-in are advised to install Click-to-Run version of Office, as outlined in Office on Windows 10 in S mode article.

Teams Meeting add-in in Outlook for Mac

The Teams Meeting button in Outlook for Mac will appear in the Outlook for Mac ribbon if Outlook is running production build 16.24.414.0 and later and is activated with an Office 365 client subscription.​

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The meeting coordinates (the Teams join link and dial-in numbers) will be added to the meeting invite after the user clicks Send.

Teams Meeting add-in in Outlook Web App

The Teams Meetings button in Outlook Web App will appear as part of new event creation if the user is on an early version of the new Outlook on the web. See the Outlook Blog to learn about how users can try the early version of the new Outlook on the web.

The meeting coordinates (the Teams join link and dial-in numbers) will be added to the meeting invite after the user clicks Send.

Teams Meeting add-in in Outlook mobile (iOS and Android)

The Teams Meeting button shows up in latest builds of the Outlook iOS and Android app.

The meeting coordinates (the Teams join link and dial-in numbers) will be added to the meeting invite after the user clicks Send.

Teams Meeting add-in in and FindTime for Outlook

FindTime is an add-in for Outlook that helps users reach a consensus on a meeting time across companies. Once the meeting invitees have provided their preferred times, FindTime sends out the meeting invite on the user's behalf. If the Online meeting option is selected in FindTime, FindTime will schedule a Skype for Business or Microsoft Teams meeting. (FindTime will use whichever has been set by your organization as the default online meeting channel.)

Note

If you saved a Skype for Business setting in your Findtime dashboard, FindTime will use that instead of Microsoft Teams. If you want to use Microsoft Teams, delete the Skype for Business setting in your dashboard.

See Schedule meetings with FindTime for more information.

Authentication requirements

The Teams Meeting add-in requires users to sign in to Teams using Modern Authentication. If users do not use this method to sign in, they'll still be able to use the Teams client, but will be unable to schedule Teams online meetings using the Outlook add-in. You can fix this by doing one of the following:

• If Modern Authentication is not configured for your organization, you should configure Modern Authentication.
• If Modern Authentication is configured, but they canceled out on the dialog box, you should instruct users to sign in again using multi-factor authentication.

To learn more about how to configure authentication, see Identity models and authentication in Microsoft Teams.

Enable private meetings

Allow scheduling for private meetings must be enabled in the Microsoft Teams admin center for the add-in to get deployed. In the admin center, go to Meetings > Meeting Policies, and in the General section, toggle Allow scheduling private meetings to On.)

The Teams client installs the correct add-in by determining if users need the 32-bit or 64-bit version.

Note

Users might need to restart Outlook after an installation or upgrade of Teams to get the latest add-in.​

Teams upgrade policy and the Teams Meeting add-in for Outlook

Customers can choose their upgrade journey from Skype for Business to Teams. Tenant admins can use the Teams co-existence mode to define this journey for their users. Tenant admins have the option to enable users to use Teams alongside Skype for Business (Islands mode).

When users who are in Island mode schedule a meeting in Outlook, they typically expect to be able to choose whether to schedule a Skype for Business or a Teams meeting. In Outlook on the web, Outlook Windows, and Outlook Mac, users see both Skype for Business and Teams add-ins when in Islands mode. Due to certain limitations in the initial release, Outlook mobile can only support creating Skype for Business or Teams meetings. See the following table for details.

Coexistence mode in the Teams admin center	Default meetings provider in Outlook mobile
Islands	Skype for Business
Skype for Business only	Skype for Business
Skype for Business with Teams collaboration	Skype for Business
Skype for Business with Teams collaboration and meetings	Teams
Teams only	Teams

Other considerations

The Teams Meeting add-in is still building functionality, so be aware of the following:

• The add-in is for scheduled meetings with specific participants, not for meetings in a channel. Channel meetings must be scheduled from within Teams.
• The add-in will not work if an Authentication Proxy is in the network path of user's PC and Teams Services.
• Users can't schedule live events from within Outlook. Go to Teams to schedule live events. For more information, see What are Microsoft Teams live events?.

Troubleshooting

If you cannot get the Teams Meeting add-in for Outlook to install, try these troubleshooting steps.

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• Ensure all available updates for Outlook desktop client have been applied.
• Restart the Teams desktop client.
• Sign out and then sign back in to the Teams desktop client.
• Restart the Outlook desktop client. (Make sure Outlook isn't running in admin mode.)
• Make sure the logged-in user account name does not contain spaces. (This is a known issue, and will be fixed in a future update.)
• Make sure single sign-on (SSO) is enabled.

If your administrator has configured Microsoft Exchange to control access to Exchange Web Server (EWS), a delegate won't be able to schedule a Teams meeting on behalf of the boss. The solution for this configuration is under development and will be released in the future.

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For general guidance about how to disable add-ins, see View, manage, and install add-ins in Office programs.

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Learn more about meetings and calling in Microsoft Teams.