Office 2021 Pro Plus Licence Key for 3 PCs – Lifetime Licence

The Microsoft Office 2021 Professional Plus licence key for 3 PCs lets you equip three Windows computers with Microsoft's complete office suite in a single purchase. It is the cost-effective choice for families, small businesses and freelancers who work across several computers. At Yeslicense, your Office 2021 Pro Plus 3 PC licence keys are delivered instantly by email once payment is confirmed.

This licence is perpetual: one purchase, no subscription, and your three PCs stay equipped indefinitely with every professional application in the Office 2021 suite.

Included applications — the complete Office 2021 Pro Plus suite

Microsoft Word 2021 — The benchmark word processor, built for professional writing of every kind of document. Office 2021 adds Focus mode, the intelligent Editor with style suggestions and built-in translation into 70 languages.

Microsoft Excel 2021 — The essential spreadsheet, enhanced with XLOOKUP, XMATCH and dynamic arrays that simplify complex data analysis. Ideal for financial reports, budgets and dashboards.

Microsoft PowerPoint 2021 — Create visually striking presentations with the new slideshow recording features and improved transitions.

Microsoft Outlook 2021 — Manage email, calendars, contacts and tasks from one powerful, centralised interface, with instant search and on-the-fly translation.

Microsoft Access 2021 — Build and manage relational databases for your business applications without advanced programming skills.

Microsoft Publisher 2021 — Design your visual communication materials: flyers, brochures, newsletters, business cards and posters.

Microsoft Teams — Collaboration, video conferencing and team chat built right into your Office suite.

Microsoft OneNote — Take notes, organise your ideas and sync your notebooks across all your devices via OneDrive.

Why choose the 3 PC licence over three individual licences?

The Office 2021 Pro Plus 3 PC licence costs less than buying three individual Office 2021 Pro Plus licences. You equip three computers in one order, with one invoice, and simplify licence management. It is the preferred option for small organisations running several workstations.

System requirements for each PC

• Operating system: Windows 10 or Windows 11 (64-bit recommended)
• Processor: 1.6 GHz minimum, dual-core recommended
• RAM: 4 GB minimum (8 GB recommended)
• Storage: 4 GB of available space per PC
• Resolution: 1280 × 768 pixels minimum
• Internet connection: required for initial activation

How to activate your 3 Office 2021 Pro Plus licences

1. After your order, you receive three separate product keys (or one multiple-activation key, depending on the licence type) by email.
2. Download Office 2021 on each PC using the official link provided in the email.
3. Enter the corresponding key during installation on each PC.
4. An internet connection allows validation with Microsoft's servers.

Frequently asked questions

Can the 3 licences be installed on PCs belonging to different users?

Yes, each key can be installed on a separate PC, whether it belongs to the same user or to three different people.

How is it different from Microsoft 365?

Microsoft 365 is a recurring subscription. Office 2021 is a one-off purchase: you pay once and keep the 2021 version, with no new features after release. For the longest Microsoft support, compare with Office 2024, supported until 2029.

Does this licence work on a Mac?

No, this version is for Windows only. For Mac, see our Office 2021 Home & Business for Mac.

Other Office licences available at Yeslicense

• Office 2021 Pro Plus 5 PC — For five PCs, ideal for small teams.
• Office 2024 Pro Plus — The latest version, supported until 2029.
• Office 2024 + Windows 11 Pro bundle — A fully equipped PC in a single order.

Need to equip more computers? See our Office 2021 Pro Plus MAK offer, designed for volume deployments in businesses.