Overview of Office LTSC 2021 - Deploy Office (2023)

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Office LTSC 2021 is the latest version of Microsoft's productivity software that's available to organizations through a volume licensing agreement.


Office LTSC 2021 is separate from Office that's available through Microsoft 365 (or Office 365) plans. For example, if you've deployed Microsoft 365 Apps for enterprise to the users in your organization, you don't need Office LTSC 2021. Microsoft 365 Apps for enterprise already has all the features that are included in Office LTSC 2021, along with many more features that aren't in Office LTSC 2021.

Office LTSC 2021 is available for enterprise admins to download and deploy to the users in their organization. The following volume licensed Office products are available for devices running Windows:

  • Office LTSC Professional Plus 2021
  • Office LTSC Standard 2021
  • Project Professional 2021
  • Project Standard 2021
  • Visio LTSC Professional 2021
  • Visio LTSC Standard 2021

These Office products use Click-to-Run, instead of Windows Installer (MSI), as the installation technology. But, how you activate these Office products – for example, by using Key Management Service (KMS) – remains the same.

Office LTSC 2021 is supported on devices running Windows 10 or Windows 11. For more information, see System requirements for Microsoft 365 and Office.

For devices running macOS, Office LTSC Standard for Mac 2021 is available for volume licensed customers. For more information, see Deployment guide for Office for Mac.

(Video) Deploy Microsoft Office LTSC 2021!

What’s changed in Office LTSC 2021?

The following are changes in Office LTSC 2021 compared to the volume licensed version of Office 2019.


If you’re moving to Office LTSC 2021 from Office 2016, you should also review the changes documented in Overview of Office 2019 (for IT Pros). The most important difference between Office 2016 and Office LTSC 2021 is the change in the installation technology from Windows Installer (MSI) to Click-to-Run.

Privacy-related policy settings

The following policy settings are available when using Group Policy:

  • Configure the level of client software diagnostic data sent by Office to Microsoft
  • Allow the use of connected experiences in Office that analyze content
  • Allow the use of connected experiences in Office that download online content
  • Allow the use of connected experiences in Office

These policy settings are located under User Configuration\Policies\Administrative Templates\Microsoft Office 2016\Privacy\Trust Center in the Group Policy Management tool.


The “Allow the use of additional optional connected experiences in Office" policy setting is also available for Office LTSC 2021. But that's not considered a change because that policy setting is already available for volume licensed versions of Office 2019.

For more information, see Use policy settings to manage privacy controls. Even though the article isn’t specifically for Office LTSC 2021, the information covered in the article about how the policy settings work does apply to Office LTSC 2021.

(Video) How to install Office LTSC 2021 Professional Plus

Support duration

Office LTSC 2021, including Project and Visio, have five years of Mainstream Support. There won’t be any Extended Support available for these products after the five years of Mainstream Support ends. For more information, see Microsoft Lifecycle Policy.

Microsoft Teams

Office LTSC 2021 includes the Teams client app. When the user launches the Teams client app, they'll be prompted to sign in. Users whose Azure Active Directory (Azure AD) account is linked to an existing Teams, Microsoft 365, or Office 365 service plan will be able to use that account to sign in to their existing licensed version of the Teams service.

Users without an existing license for Teams will be able to use the free or the Exploratory service for Microsoft Teams.

  • The free version of Microsoft Teams is for users who don't have an existing Azure Active Directory (Azure AD) account. For more information, see Manage the free version of Microsoft Teams.

  • The Exploratory experience is for users in an organization who have existing Azure AD accounts but aren't licensed for Teams. For more information, see Manage the Microsoft Teams Exploratory license.

For more information about the installation of the Teams client app with Office LTSC 2021, see Microsoft Teams in Office LTSC 2021.

Language support

Office LTSC 2021 adds support for the following three languages:

  • English (United Kingdom), en-gb
  • French (Canada), fr-ca
  • Spanish (Mexico), es-mx


These three languages aren't available in Project or Visio.

(Video) Configure and install Office 2019/2021/O365 Apps with (ODT) Office Deployment Tool - Step by Step

OpenDocument format 1.3

Word, Excel, and PowerPoint in Office LTSC 2021 include support for OpenDocument format (ODF) 1.3. For more information, see Office apps now support OpenDocument format 1.3.

Office Add-ins

Several more Office Add-ins JavaScript APIs are available with Office LTSC 2021. These include the following requirement sets.

  • Product requirement sets:

    • Excel: Up to 1.12
    • Outlook: Up to 1.9 on Windows, up to 1.8 on Mac
    • PowerPoint: Up to 1.2
  • Common API requirement sets:

    • CustomFunctionsRuntime 1.3 (Excel)
    • DialogApi 1.2 (Excel, PowerPoint, Word)
    • IdentityAPI 1.3 (Excel, Outlook, PowerPoint, Word)
    • ImageCoercion 1.2 (Excel, PowerPoint, Word)
    • OpenBrowserWindowApi 1.1 (Excel, Outlook, PowerPoint, Word)
    • RibbonApi 1.1 (Excel)
    • SharedRuntime 1.1 (Excel)

Office Add-ins on Windows now use Microsoft Edge with WebView2. For more information, see Browsers used by Office Add-ins.

Office Telemetry Dashboard

Office Telemetry Dashboard is no longer included with the installation of Office and isn't supported for Office LTSC 2021.

OneDrive for Business (Groove) client

The OneDrive for Business (Groove) client is no longer included with the installation of Office and isn't supported for Office LTSC 2021.

Power View in Excel

Power View isn't available for the version of Excel that's included with Office LTSC 2021. Power BI is the recommended tool for visual data exploration and reporting. For more information, see Roadmap for Power View in Excel.

What’s stayed the same in Office LTSC 2021?

You can use the same software distribution tools, such as Microsoft Configuration Manager, to deploy and update Office LTSC 2021 that you currently use to deploy and update volume licensed versions of Office 2019.

Also, how you activate volume licensed versions of Office remains the same. For example, by using Key Management Service (KMS) or Multiple Activation Key (MAK). For more information, see Overview of volume activation of Office.

(Video) Download Office LTSC Professional Plus 2021 Volume License | Office 2021 by Office Deployment Tools

The major version of Office LTSC 2021 is 16.0, which is the same major version as volume licensed versions of Office 2019 (and Office 2016). Having the same major version provides the following benefits when you’re upgrading from Office 2019:

  • Existing Group Policy settings will continue to work, because those settings are still saved in the following registry locations:
    • HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Office\16.0
    • HKEY_CURRENT_USER\SOFTWARE\Policies\Microsoft\Office\16.0
  • Other registry locations and settings information that reference 16.0 will still apply.
  • Add-ins and other extensibility solutions that are compatible with volume licensed versions of Office 2019 will most likely be compatible with Office LTSC 2021 or will require only minimal testing.

What are the new features in Office LTSC 2021?

For information about the new features in Office LTSC 2021, see the following articles:

  • What's new in Office 2021
  • What's new in Access 2021
  • What's new in Excel 2021
  • What's new in Outlook 2021
  • What's new in PowerPoint 2021
  • What's new in Visio Professional 2021
  • What's new in Word 2021

Keep in mind that Office LTSC 2021 includes only some, but not all, features that are available in versions of Office that come with a Microsoft 365 (or Office 365) plan.

Office LTSC 2021 won’t receive any new features now that it's released. If you want to get new Office features on an on-going basis, you should consider moving to a Microsoft 365 (or Office 365) plan that includes Office. Many enterprise plans include Microsoft 365 Apps for enterprise, which includes the same Office apps as Office LTSC Professional Plus 2021. For more information, see Compare Microsoft 365 enterprise plans and Compare Office 365 enterprise plans.

To get on-going feature updates for the desktop versions of Project and Visio, you should consider moving to a subscription plan for those products. For more information, see Project Plan 3/Project Plan 5 and Visio Plan 2.


The Teams client app included with Office LTSC 2021 will continue to receive new features. The update process for Teams is different than the update process for the other Office apps, such as Word and Excel. For more information, see Teams update process.

How do I upgrade to Office LTSC 2021?

We recommend that you uninstall existing versions of Office before you deploy Office LTSC 2021. You can remove most Office products that were installed with Windows Installer (MSI), such as Office 2016 or Office 2013, from the device as part of the installation of Office LTSC 2021. For more information, see Remove existing versions of Office before installing Office LTSC 2021.

Additional information about Office LTSC 2021

  • Office LTSC Professional Plus 2021 includes Access, Excel, OneNote, Outlook, PowerPoint, Publisher, Skype for Business, Teams, and Word.
  • Access and Publisher aren't available for devices running macOS.
  • Office LTSC 2021 includes the OneNote desktop app. For more information, see Deployment guide for OneNote.
  • Office LTSC 2021 is available in both 32-bit and 64-bit versions. We recommend 64-bit on devices that have 4 GB or more of memory. But you should assess application compatibility and other factors that might require you to use the 32-bit version. For more information, see Choose between the 64-bit or 32-bit version of Office.
  • After downloading the installation files, internet connectivity isn’t required to install Office LTSC 2021. Internet connectivity is required for MAK activation, but not for KMS activation. After activation, internet connectivity isn't required to use Office LTSC 2021.
  • LTSC stands for Long Term Servicing Channel.

Related articles

  • Deploy Office LTSC 2021
  • Update Office LTSC 2021
  • Overview of volume activation of Office


How do I deploy Office 2021 Ltsc? ›

Download the Office Deployment Tool from the Microsoft Download Center. Create the configuration.xml file. Download the Office LTSC 2021 installation files (optional, if not installing directly from the Office CDN) Install Office LTSC 2021 by using the Office Deployment Tool.

What is the difference between office and office Ltsc? ›

The most important difference between Office 2016 and Office LTSC 2021 is the change in the installation technology from Windows Installer (MSI) to Click-to-Run.

What is Ltsc version of Microsoft Office? ›

What is Office LTSC? Office LTSC is the latest perpetual version of Microsoft 365 for commercial and government customers, a device-based license available as a one-time, “perpetual” purchase, available on both platforms (Windows and Mac).

How to install Excel LTSC 2021? ›

How to Install Office LTSC 2021
  1. Download the Office Deployment Tool from the Microsoft Download Center.
  2. Configure/Create your 'configuration. xml' file.
  3. Download the Office LTSC 2021 installation files (optional step)
  4. Install Office LTSC 2021 by using the Office Deployment Tool.
Aug 15, 2022

What does LTSC stand for? ›

Microsoft Windows Server LTSC (Long-Term Servicing Channel) is a servicing option for Microsoft's server operating system that follows the familiar track of two to three years between feature updates.

How do I deploy Office? ›

  1. Download the Office Deployment Tool from the Microsoft Download Center.
  2. Create the configuration.xml.
  3. Sample configuration.xml file to use with the Office Deployment Tool.
  4. Remove existing versions of Office before installing Office 2019.
  5. Download the Office 2019 installation files.
Nov 23, 2022

Can Ltsc be upgraded? ›

LTSC cannot be upgraded via WSUS or any other Windows Update method. You must run an in-place upgrade to move from one version of LTSC to another.

What is the difference between Windows 10 Enterprise LTSC and N LTSC? ›

Windows 10 Enterprise N LTSC 2021 includes the same functionality as Windows 10 Enterprise LTSC 2021, except that it does not include certain media related technologies (e.g., Windows Media Player, Camera, Music, Movies & TV) or the Skype app.

What is the latest version of Ltsc? ›

The Windows 10 Enterprise LTSC 2021 release includes the cumulative enhancements provided in Windows 10 versions 1903, 1909, 2004, 21H1, and 21H2.

What is the difference between Windows 10 and Windows 10 Ltsc? ›

The LTSC edition of Windows 10 provides customers with access to a deployment option for their special-purpose devices and environments. These devices typically perform a single important task and don't need feature updates as frequently as other devices in the organization.

How do I activate Office LTSC? ›

How to activate Office LTSC by using a product key. Open a Word, Excel, or PowerPoint file, and then select File. Select Account > Change Product Key. Type the product key in the text box, and then select Activate Office.

How long is LTSC supported? ›

Support Dates
ListingStart DateExtended End Date
Windows 10 Enterprise LTSC 2019Nov 13, 2018Jan 9, 2029

What is the difference between Office 2021 and Office LTSC 2021? ›

There are some differences between the features in Office 2021 and Office LTSC 2021. Mostly the two packages are the same but Office LTSC does NOT have these Office 2021 changes: October 2021 'Visual Refresh' was for Office 2021 and Office 365 only. Co-authoring documents is NOT in Office LTSC 2021 — a major omission.

Should I install Windows Ltsc? ›

Windows 10 LTSC works fine on an everyday PC as long as you're okay with not getting the latest features. You can still connect to the internet, install third-party apps, and play PC games, but it may take some extra work to get some apps and games to function properly on your version of Windows.

What is Microsoft Ltsc 2021 volume license pack? ›

It gives you the ability to download multiple files at one time and download large files quickly and reliably. It also allows you to suspend active downloads and resume downloads that have failed. Microsoft Download Manager is free and available for download now.

How much does LTSC cost? ›


How can I tell if my server is LTSC? ›

Open PowerShell and use the Get-ItemProperty cmdlet, or the Get-ComputerInfo cmdlet, to check these properties in the registry. Along with build number, this will indicate LTSC or SAC by the presence, or lack thereof, of the branded year, i.e. 2019 - LTSC has this, SAC does not.

What are the 3 main steps in the deployment process? ›

Software deployment process mainly consists of 3 stages: development, testing and monitoring.

How does deploy work? ›

Deployment is the mechanism through which applications, modules, updates, and patches are delivered from developers to users. The methods used by developers to build, test and deploy new code will impact how fast a product can respond to changes in customer preferences or requirements and the quality of each change.

Which tool is used to deploy? ›

Deployment tools streamline the process of distributing software and updates, usually via scheduling or automation, so that developers can focus on more critical tasks. They also allow developers to collaborate on projects, track progress, and manage changes.

Can I install edge on LTSC? ›

As its development and release is dependent on the model of Windows as a service, it is not included in Windows 10 Enterprise Long-Term Servicing Channel (LTSC) builds.

Does LTSC have edge? ›

Elo devices that are sold with Windows 10 are LTSC versions and therefore may not have Edge and other apps that require regular updates, instead, these typically have Microsoft's Internet Explorer. This is how Microsoft designed LTSB and LTSC.

Can you upgrade from LTSC to enterprise? ›

You can upgrade from Windows 10 LTSC to Windows 10 General Availability Channel if you upgrade to the same or a newer build version. For example, Windows 10 Enterprise 2016 LTSB can be upgraded to Windows 10 Enterprise version 1607 or later. Upgrade is supported using the in-place upgrade process (using Windows setup).

Should I use Windows 10 enterprise Ltsc? ›

The Windows 10 Enterprise LTSC (Long Term Servicing Channel) is designed for devices where the key requirement is that functionality and features don't change over time. These devices include ATMs, point of sale (POS) devices, and other automation and IoT systems.

Will there be a Windows 11 enterprise LTSC? ›

Windows 11 IoT Enterprise LTSC version will be released in the mid-2023 timeframe. Windows 11 IoT Enterprise will have only one release per year.

Is 21H2 a LTSC? ›

There are currently 4 releases of LTSC: one in 2015 (version 1507), one in 2016 (version 1607), one in 2018 (labeled as 2019, version 1809), and one in 2021 (version 21H2).

Is LTSC faster than pro? ›

For that matter, Windows 10 Enterprise, LTSC or not, is not demonstrably “more stable” or “faster performance” than Windows 10 Pro on a standard desktop with retail software. LTSC is easier to manage for a corporation that doesn't need to chase down and implement change every week on hundreds of machines.

How do I activate Microsoft Office for free permanently? ›

  1. Activating your free Office suite via Microsoft. Open the Microsoft Office program of your choice. ...
  2. Step 1: open the Office program. ...
  3. Step 2: choose an account. ...
  4. Step 3: log in to Microsoft 365. ...
  5. Step 4: accept the conditions. ...
  6. Step 5: get started.
Sep 2, 2022

How to activate Office without product key? ›

Step 1: Go to www.office.com/setup or Microsoft365.com/setup. Step 2: Sign in with your Microsoft account, or create one if you don't have one. Be sure to remember this account so that you can install or reinstall Office later, without a product key.

How do I force office activation? ›

Log into your computer with an administrator account. Change to the directory where Microsoft Office is installed. cscript ospp. vbs /act to complete the activation process.

How do I install Microsoft Store Ltsc? ›

Step 1: Visit the Github page for LTSC Microsoft Store Installer or LTBS Microsoft Store installer page depending upon your requirement and download the code. Step 2: Extract the code archive and look for Add-Store. cmd. Step 3: Turn on the Developer mode in the system from settings.

How do I install Office Ltsc standard for Mac 2021? ›

Upgrade to Office LTSC for Mac 2021 (volume license)

Office must be updated to at least Version 16.53. Download the Volume License (VL) Serializer for Office LTSC for Mac 2021 from the Volume Licensing Service Center (VLSC). Run the VL Serializer on each Mac where Office is installed.

How do I start the Office Deployment Tool? ›

Download the installation files for Microsoft 365 Apps
  1. Step 1: Create the configuration file. ...
  2. Step 2: Run the ODT executable in download mode. ...
  3. Step 3: Validate that the files have been downloaded.
Oct 27, 2022


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