Microsoft Office 2021 Professional Plus LTSC MAK

Microsoft Office 2021 Professional Plus LTSC MAK: A Perpetual Desktop Suite for Managed Volume Deployments

For organisations managing a defined fleet of Windows workstations, the Microsoft Office 2021 Professional Plus LTSC MAK license delivers a stable, predictable, and perpetually licensed productivity environment without the operational variables of a subscription. This is a volume activation product designed for IT administrators who need to standardise on a fixed-release desktop suite across 100, 1000, 2500, or 5000 users or devices, ensuring consistent behaviour for critical documents, line-of-business add-ins, and regulated workflows. The core benefit is operational certainty: you receive a genuine, verified Multiple Activation Key (MAK) that activates a known quantity of installations against Microsoft's hosted activation services, giving you a classic, offline-capable Office deployment that remains unchanged for its supported lifecycle. This is not Microsoft 365, not an account-based subscription, and not a KMS host-dependent setup. It is a perpetual desktop licence for Windows 10 or Windows 11, providing Word, Excel, PowerPoint, Outlook, Access, Publisher, and OneNote in a format that your procurement and IT teams can own, control, and audit with precision.

Key features and benefits

• Complete Professional Plus application stack: Includes Word 2021 for document creation, Excel 2021 for data analysis, PowerPoint 2021 for presentations, Outlook 2021 for email and calendar management, plus Access 2021 for desktop databases and Publisher 2021 for print-oriented layouts. This ensures your teams have the full toolkit for diverse business tasks without needing supplementary purchases.
• Perpetual, fixed-release licensing model: You purchase once and use the software indefinitely on the licensed devices. Unlike subscription models, there are no recurring annual or monthly fees, and the feature set remains static, eliminating unplanned change management caused by frequent updates.
• Multiple Activation Key (MAK) volume activation: A single MAK is provided for the entire order scope, activating installations directly against Microsoft's servers. This is ideal for fleets that are not connected to a permanent internal Key Management Service (KMS) host, such as remote sites, training labs, or standardised device images.
• Long-Term Servicing Channel (LTSC) stability: This edition is built on the LTSC, meaning it receives security and bug fixes but no feature updates. This guarantees that macros, add-ins, and complex document templates will not break unexpectedly, a critical requirement for finance, engineering, and legal departments.
• Modern Excel capabilities for advanced data work: Excel 2021 introduces dynamic arrays, XLOOKUP, XMATCH, LET, and the FILTER function. These features significantly reduce the complexity of maintaining price lists, reconciliation workbooks, and operational reports, making data manipulation faster and less error-prone.
• Classic, locally installed Outlook client: Provides a full desktop mail, calendar, contact, and task management experience. It supports POP, IMAP, and Exchange accounts, allowing businesses to retain their established email workflows without migrating to a browser-only interface.
• Offline-first operational design: Once activated, the core applications function without a continuous internet connection. This is essential for secure sites, field service devices, and environments with restricted network access where cloud-dependent tools are not viable.
• Broad language support for multinational teams: The interface is available in over 20 languages, including English, German, French, Spanish, Dutch, Polish, and Japanese. This allows a standardised deployment image to serve a linguistically diverse workforce across the EU.
• Simplified IT asset management: A MAK deployment provides a clear, countable activation record. Administrators can manage the number of used activations through the Volume Licensing Service Center (VLSC), aiding in compliance audits and internal asset tracking.
• Compatibility with established Windows estates: Officially supported on Windows 10 and Windows 11, this version integrates cleanly into existing Active Directory environments and standard desktop management tools, preserving your investment in current infrastructure.

What's included with your purchase

Your purchase from Lizensa provides a genuine Microsoft Office 2021 Professional Plus LTSC MAK volume licence key, delivered digitally. This is a commercial, perpetual-use licence for the specified quantity of installations, not a time-limited subscription. Upon completing your order, you will receive a confirmation email containing your unique MAK, a direct download link to the official Microsoft installation media, and a detailed activation guide. The licence is permanent for the version purchased; it does not expire, though it does not include upgrade rights to future releases like Office 2024. Activation is performed online via Microsoft's servers, and the key can be used for multiple installations up to the purchased volume count. This product is compatible exclusively with Windows 10 and Windows 11. A full VAT invoice is provided with every order, suitable for business accounting and tax reclamation.

Office versions compared — which one should you buy?

Choosing between a one-time purchase and a subscription is the primary decision for any business. This Office 2021 Professional Plus LTSC MAK represents the one-time purchase path, designed for organisations that prioritise cost predictability and operational stability over continuous feature updates. In contrast, a Microsoft 365 subscription (such as Apps for Enterprise) provides always-up-to-date applications, cloud services like OneDrive and Teams, and mobile app rights for a per-user monthly fee. The table below clarifies the application scope of this specific edition.

| Included Application | Office 2021 Professional Plus | Office 2021 Home & Business | Microsoft 365 Apps for Enterprise | | :--- | :---: | :---: | :---: | | Word | ✔ | ✔ | ✔ | | Excel | ✔ | ✔ | ✔ | | PowerPoint | ✔ | ✔ | ✔ | | Outlook | ✔ | ✔ | ✔ | | Access | ✔ | ❌ | ✔ | | Publisher | ✔ | ❌ | ✔ | | OneNote | ✔ | ✔ | ✔ | | Teams | ❌ | ❌ | ✔ | | Cloud Services (OneDrive, Exchange) | ❌ | ❌ | ✔ | | Licence Model | Perpetual, device-based | Perpetual, device-based | Subscription, user-based |

This Professional Plus edition is best suited for medium to large enterprises, public sector bodies, and educational institutions that require the database capabilities of Access, the desktop publishing tools of Publisher, and a managed volume activation method. It is also the correct choice for regulated industries where software version consistency must be maintained for compliance validation. It is not the ideal choice for a single home user or a very small business that only needs core applications, for whom Office 2021 Home & Business would be more appropriate and cost-effective.

System requirements / compatibility

Before deployment, verify that your target workstations meet the following minimum specifications to ensure reliable performance. These requirements are for Office 2021 Professional Plus on Windows.

• Operating System: Windows 10 or Windows 11. This product is not compatible with Windows 7, Windows 8.1, macOS, Linux, or mobile operating systems.
• Processor: A 1.6 GHz or faster, 2-core processor is required. For older Office generations that might be part of a mixed estate, a 1 GHz SSE2-class processor is the baseline, but a modern dual-core chip is recommended for 2021.
• Memory: 4 GB of RAM is recommended for 64-bit installations; 2 GB is the minimum for 32-bit.
• Display: A screen resolution of 1280 x 768 pixels is required for standard document work and to use modern collaboration features like ink replay correctly.
• Storage: 4 GB of available disk space is needed for the full installation.
• Internet: An internet connection is mandatory for the initial download, licence activation, and to receive security updates. Periodic re-activation may require online connectivity.
• Languages: The product supports installation in over 20 languages, including English, German, French, Spanish, Portuguese, Japanese, Polish, Dutch, Italian, Czech, Swedish, Danish, Finnish, Norwegian, Greek, Hungarian, Romanian, Slovak, Slovenian, Croatian, Bulgarian, Estonian, Lithuanian, and Latvian.

Installation and activation

Your licence key and a secure download link for the official Microsoft installation media are delivered by email within minutes of payment confirmation. The average delivery time is under 60 seconds. To begin, download the media, run the installer, and when prompted, enter the MAK provided in your delivery email. The software will activate online against Microsoft's licensing servers. For volume deployments, you can integrate the MAK into your standard Windows imaging process or script the activation using the slmgr.vbs tool. If you encounter an activation error, our free multilingual technical support team can assist you in diagnosing the issue, whether it relates to network configuration, proxy settings, or activation count limits. Should you need to reinstall the software on the same device, for example after a hardware failure or OS reimage, you can do so without issue, though you may need to use the telephone activation option if the online activation count for that specific key has been exhausted.

Why choose Lizensa for your software licenses

Securing volume software licences requires a partner who combines speed, legal certainty, and genuine product provenance. At Lizensa, we have built our entire fulfilment process around these principles. When you complete your purchase through our Stripe-secured checkout, which supports SEPA, iDEAL, BLIK, Google Pay, and major credit cards, our automated system immediately prepares your unique, genuine licence key. This key is sourced directly from authorised European distribution channels, guaranteeing its authenticity and full compliance with EU software directives. You are not buying a second-hand or grey-market key; you are purchasing a legally valid, verifiable volume licence. Your order confirmation includes a full VAT invoice, with reverse-charge mechanisms available for valid B2B transactions within the EU, simplifying your accounting. As a consumer or business based in the European Union, your purchase is protected by a 14-day right of refund, and the licence itself carries the full European legal warranty. Your activation is valid across all 27 EU member states. Our commitment to support extends beyond the sale; our free multilingual technical team is available to help with any activation or installation queries, ensuring your deployment stays on track.

FAQ — frequently asked questions

Is this a subscription or a one-time purchase?

This is a one-time, perpetual purchase. You pay a single upfront fee and can use the software indefinitely on the licensed devices. There are no monthly or annual renewal charges, and the core application functionality will never be locked due to a lapsed payment.

What is a MAK volume licence and how is it different from a retail key?

A Multiple Activation Key (MAK) is a volume licence key used by organisations to activate a specific number of devices against Microsoft's hosted activation servers. Unlike a retail key, which is typically for a single consumer PC, a single MAK can activate multiple computers (up to the quantity you purchased). It is managed through the Volume Licensing Service Center, not a personal Microsoft account.

What is the difference between MAK and KMS activation?

MAK activation connects each device directly to Microsoft's online service to complete a one-time, permanent activation. KMS (Key Management Service) requires an organisation to set up a local server that devices periodically check in with to remain activated. MAK is simpler for distributed fleets or sites without a dedicated IT server infrastructure.

How fast do I get my licence key?

Our delivery is automated and near-instant. On average, the email containing your MAK, download link, and invoice arrives in your inbox within 60 seconds of a successful payment confirmation.

Is this a genuine and legal Microsoft licence?

Absolutely. Every licence we sell is sourced from authorised European distributors and is 100% genuine. You receive a legally compliant, verifiable licence that is valid for use in all 27 EU member states, backed by a full VAT invoice.

What if I have trouble activating the software?

If you encounter an error during activation, our free multilingual technical support team is ready to assist. Common issues, such as reaching an activation count limit or network proxy blocks, can usually be resolved quickly with our guidance.

Can I reinstall this software or transfer the licence to a new computer?

You can reinstall the software on the same device as many times as needed. However, a MAK licence is generally assigned to a specific device and is not designed for casual transfer between different computers by end-users. Volume licence transfers are governed by Microsoft's volume licensing terms.

Does this version of Office work on a Mac?

No. Microsoft Office 2021 Professional Plus LTSC is exclusively compatible with Windows 10 and Windows 11. It cannot be installed on macOS, iOS, Android, or ChromeOS.

Do you provide a VAT invoice for business purchases?

Yes, a full VAT invoice is automatically generated and included with your order confirmation email. For B2B customers with a valid EU VAT ID, we can apply the reverse-charge mechanism where applicable.

What is your refund policy?

We offer a 14-day right of refund in accordance with EU consumer protection law. If you have not successfully activated the product and wish to return it, you can contact us within 14 days of purchase to arrange a full refund.

Does this licence include Microsoft Teams or OneDrive storage?

No. This is a classic, locally installed desktop suite. It does not include cloud services like Microsoft Teams, OneDrive storage, Exchange Online, or SharePoint. If your workflow depends on these services, a Microsoft 365 subscription would be the correct product.

Is this the latest version of Office?

This is Office 2021, the predecessor to Office 2024. It is the correct choice for organisations that need a stable, fixed-release platform for their line-of-business applications and who are not yet ready to validate the newest release. It receives security updates but no feature changes, ensuring long-term operational consistency.