Box packaging for Microsoft Office 2021 Professional Plus LTSC with icons for Word, Excel, PowerPoint, Outlook, Teams, OneNote, Publisher, and Access applications.
Microsoft Office 2021 Pro Plus LTSC Product Key-2
    Box packaging for Microsoft Office 2021 Professional Plus LTSC with icons for Word, Excel, PowerPoint, Outlook, Teams, OneNote, Publisher, and Access applications.
    Microsoft Office 2021 Pro Plus LTSC Product Key-2
Box packaging for Microsoft Office 2021 Professional Plus LTSC with icons for Word, Excel, PowerPoint, Outlook, Teams, OneNote, Publisher, and Access applications.
Microsoft Office 2021 Pro Plus LTSC Product Key-2

Microsoft Office 2021 Pro Plus LTSC Product Key

Get a proven and stable productivity suite with Microsoft Office 2021 Professional Plus LTSC. Designed for professional and business environments,...

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$4.81 USD
$4.81 USD
$295.19 USD
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Get a proven and stable productivity suite with Microsoft Office 2021 Professional Plus LTSC.

Designed for professional and business environments, Office LTSC 2021 provides the familiar Microsoft Office desktop experience with a fixed feature set and no requirement for a Microsoft 365 subscription.

Professional Plus includes Word, Excel, PowerPoint, Outlook, Access, Publisher, and OneNote, providing a comprehensive set of tools for documents, spreadsheets, presentations, email, databases, publishing, and everyday business productivity.

Applications Included

  • Word 2021 – Create and edit professional documents with modern editing and accessibility tools.
  • Excel 2021 – Analyze data with features including Dynamic Arrays, XLOOKUP, improved formulas, and charts.
  • PowerPoint 2021 – Create professional presentations with improved visual and presentation tools.
  • Outlook 2021 – Manage email, calendars, contacts, and schedules.
  • Access 2021 – Create and manage desktop databases and business applications.
  • Publisher 2021 – Design professional layouts, publications, and marketing materials.
  • OneNote – Organize notes, research, projects, and ideas.

Why Choose Office 2021 Professional Plus LTSC?

  • No Microsoft 365 Subscription Required – Use the classic desktop Office applications without recurring Microsoft 365 subscription fees.
  • Professional Plus Suite – Includes Access and Publisher alongside the core Office applications.
  • Fixed Feature Set – Designed for environments where consistency and predictable functionality are important.
  • Offline Productivity – Core desktop applications can be used without a constant internet connection after installation and activation.
  • Proven Office Platform – A mature Office generation suitable for users who specifically require Office 2021 compatibility.
  • Broad Business Toolset – Covers documents, spreadsheets, presentations, email, databases, publishing, and notes.

Important Support Information

Microsoft Office LTSC 2021 reaches the end of its official support lifecycle on October 13, 2026. After this date, Microsoft will no longer provide security updates, bug fixes, or technical support for Office LTSC 2021.

Users who want the newer supported LTSC generation should consider Office LTSC 2024.

System Requirements

  • Operating System: Windows 11, supported Windows LTSC editions, or compatible Windows Server editions
  • Processor: 1.1 GHz or faster, 2-core
  • Memory: 4 GB RAM
  • Storage: 4 GB available disk space
  • Display: 1280 × 768 minimum resolution
  • Internet: Required for download, MAK activation, and online functionality

Choose Microsoft Office 2021 Professional Plus LTSC when compatibility with the 2021 generation and a stable, fixed Office environment are your priorities.

Activation Guide

Video Guide

https://www.youtube.com/watch?v=7lwCQ_dh_ks

Before you start, make sure any previous version of Microsoft Office or Microsoft 365 is completely uninstalled from your PC.

Installation & Activation

  1. Create a new folder on your desktop, for example:Office2021
  2. Go to the official Microsoft Office Customization Tool:https://config.office.com/
  3. Click Create to create a new Office configuration.
  4. Configure Office with the following settings:Architecture: Select 64-bit for most modern PCs, or 32-bit if required by your system.Product: Select Office LTSC Professional Plus 2021 – Volume License.Select the Office applications you want to install.Choose your preferred language.Select the appropriate Office LTSC 2021 perpetual volume license channel.When asked for the product key type, select MAK / Volume License if you received a MAK key.Enter your Office 2021 Professional Plus LTSC product key.
  5. Complete the configuration and click Finish.
  6. Click Export, select the Office Open XML format, accept Microsoft's terms, and save the file inside the folder you created earlier.Give it a simple name, for example:office2021.xml
  7. Download the official Microsoft Office Deployment Tool (ODT):https://www.microsoft.com/en-us/download/details.aspx?id=49117
  8. Save the Office Deployment Tool inside the same Office2021 folder.
  9. Run the Office Deployment Tool and extract its files into the same folder.Make sure the folder contains:setup.exeYour configuration file, for example office2021.xml
  10. Open Command Prompt as Administrator.
  11. Navigate to the folder containing setup.exe and your XML configuration file. For example:

cd "C:\Users\YourName\Desktop\Office2021"

  1. Run the following command:

setup.exe /configure office2021.xml

If you gave your XML file a different name, replace office2021.xml with the exact name of your file.

  1. Press Enter. Office 2021 Professional Plus LTSC will download from Microsoft's servers and install automatically.

Make sure your computer has a stable internet connection during the installation process.

  1. Once the installation is complete, open Word, Excel, or another Office application and go to:

File → Account

  1. Office should activate automatically online if the product key was entered correctly during the configuration process.

If prompted, enter your purchased Office 2021 Professional Plus LTSC product key and complete the activation.