Looking for the most affordable way to own the full Microsoft Office suite? Office 2021 Pro Plus OEM for Windows gives you all the powerful features of the Pro Plus edition — at a fraction of the price. This is a 1-time-use license with direct download delivery and lifetime activation on a single installation.
What Is Office 2021 Pro Plus OEM?
Office 2021 Pro Plus OEM includes Word, Excel, PowerPoint, Outlook, Publisher, and Access — all in one package. It’s ideal for professionals, students, and home users who want to buy once and use forever.
This version does not bind to a Microsoft account and cannot be transferred. You’ll receive your activation key and download link instantly by email after purchase.
⚠️ Please Note:
1 key is valid for 1 activation on 1 installation only
Reinstallation on the same or new device requires a new key
What You’ll Receive
✅ Office 2021 Pro Plus OEM Activation Key (1 PC only)
✅ Official Microsoft download link
✅ Step-by-step installation instructions
✅ Lifetime activation on 1 installation
✅ Free 24/7 support
Complete Your Setup
To ensure you have the optimal environment for Office 2021 Pro Plus OEM, we offer compatible Windows operating systems:
Windows 11 Pro Retail: Experience the latest Windows operating system with enhanced security, improved performance, and a refreshed design.
Windows 10 Pro Retail: A reliable and robust operating system with all the essential features for business and personal use.
Contact our support team to check if your device is compatible with Windows 11 and meets the requirements .
Explore Other Office Options
If Office 2021 Pro Plus OEM isn’t the perfect fit for your needs, we offer a range of other Microsoft Office suites:
Office Home 2024: The latest version of the classic Office suite, with updated features and a refreshed interface.
Office 2019 Professional Plus: The previous perpetual version of Office, with a familiar interface and robust features.
Budget-Friendly – Enjoy a lower price without compromising on features
Full Office Suite – Includes all core apps for personal or professional use
Offline Activation – No Microsoft account or subscription needed
One-Time Purchase – Activate once and use for life
Fast Setup – Download and activate in minutes
Included Applications
Word 2021 – Create polished, professional documents
Excel 2021 – Advanced spreadsheets, formulas, and data analysis
PowerPoint 2021 – Build engaging presentations with new templates
Outlook 2021 – Manage emails, calendars, and contacts
Publisher 2021 – Design layouts, flyers, and marketing materials
Access 2021 – Build and manage databases with ease
System Requirements
Requirement
Windows
Processor
1.6 GHz or faster, 2-core
Memory
4 GB RAM
Storage
4 GB available space
Display
1280 × 768 resolution
Graphics
DirectX 9 or later with WDDM 2.0
Operating System
Windows 10 or Windows 11
Internet
Required for download and activation
Why Buy from Top Key Shop?
🔑 Instant Digital Delivery – Get your license key and download link within minutes
🛡️ Verified Microsoft Software – 100% genuine, secure activation
💬 Free 24/7 Support – Reach out any time for help
⭐ Trusted by Thousands – See what our customers say on Google and Trustpilot
Posted on Google
Vedran Vugrić
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You're the best
Owner's reply Thank you so much for your kind words, Vedran! We're thrilled to know you had a great experience with us. If there's anything else we can help you with, don't hesitate to reach out. Best regards, Top Key Shop
Posted on Google
Flemming Sivertsen
Trustindex verifies that the original source of the review is Google.
Det drejer sig om at læse jeres vejledninger igennem, de er faktisk lette at forstå, det hjalp mig så alt gik fint, tak.
Owner's reply Hej Flemming, Mange tak for din fine anmeldelse! Det glæder os at høre, at vores vejledninger var nemme at følge, og at de hjalp dig med at få det hele til at fungere uden problemer. Vi gør os umage for at gøre vores instruktioner så enkle og klare som muligt, så det er dejligt at høre, at de var til hjælp. Hvis du får brug for hjælp i fremtiden, er vi altid klar til at hjælpe. Med venlig hilsen, Top Key Shop
Posted on Google
Franjo Rebernak
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Owner's reply Dear Franjo, Thank you for your positive feedback! We're glad you had a great experience. Should you ever need assistance or have any queries, feel free to reach out. Best regards, Top Key Shop
Posted on Google
Miran Ž.
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Everything went ok. I needed just a little assistance and they were very responsive. Great shop.
Owner's reply Hi Miran, Thank you for sharing your experience! We're pleased to hear that everything went smoothly and that our support team was able to assist you promptly when you needed a little help. Your recommendation and kind words mean a lot to us. If you ever need any assistance in the future, we're always here to help. Best regards, Top Key Shop
Posted on Google
Semir Pekmezovic
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Owner's reply Hi Semir, Thank you for your 5-star rating! We truly appreciate your support and are grateful that you chose Top Key Shop. We hope everything is working perfectly, and if you ever need any assistance in the future, we're always here to help. Best regards, Top Key Shop
Posted on Google
Uroš Leder
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Super!
Owner's reply Hi Uroš, Thank you for your review! We truly appreciate your support and are happy to know you had a great experience with us. If you ever need any assistance in the future, we're always here to help. Best regards, Top Key Shop
Posted on Google
Aleksandar Gavranov
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Everything is great so far.
Owner's reply Hi Aleksandar, Thank you for your feedback! We're pleased to know that everything has been working well for you so far. We appreciate your trust in Top Key Shop and hope you continue to have a great experience. If you ever need any assistance in the future, we're always here to help. Best regards, Top Key Shop
Posted on Google
Janez Matija
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Owner's reply Hi Janez, Thank you for your 5-star rating! We truly appreciate your support and are delighted that you chose Top Key Shop. We hope everything is working perfectly, and if you ever need any assistance in the future, we're always here to help. Best regards, Top Key Shop
Posted on Google
Željko Tešić
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I am very satisfied with the purchase the speed of delivery and the process of downloading and setting up Microsoft Office 2021.Everything works perfectly.Thank You and I recommend you.Željko Tešić
Owner's reply Hi Željko, Thank you for taking the time to share your experience! We're delighted to hear that you were satisfied with your purchase, the fast delivery, and how easy it was to download and set up Microsoft Office 2021. It's especially rewarding to know that everything is working perfectly and that you would recommend us to others. If you ever need any assistance in the future, we're always here to help. Best regards, Top Key Shop
Posted on Google
Elmārs Vorslavs
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Owner's reply Thank you, Elmārs, for taking a moment to review us. We're so glad we could provide you with a positive experience! If you ever need assistance or have questions, don't hesitate to reach out. Best regards, Top Key Shop
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Conclusion
Office 2021 Pro Plus OEM for Windows gives you the full Office suite with Word, Excel, PowerPoint, Outlook, and more — all at a lower price, delivered instantly. Perfect for one-time installation and lifetime use without subscriptions or account-binding.
👉 Buy now and start working in minutes – only at Top Key Shop!
Frequently Asked Questions – Office 2021 Pro Plus OEM
What is Office 2021 Pro Plus OEM and how does it differ from the Retail version?
The Office 2021 Pro Plus OEM license is tied to a single device and cannot be transferred to another machine. It is a one-time-use key that activates the full Office suite — Word, Excel, PowerPoint, Outlook, Publisher, and Access — permanently on one installation. The Office 2021 Professional Plus Retail version, by contrast, offers more flexibility and may be transferred between devices. If portability matters to you, the Retail edition may be a better fit.
What do I receive after purchasing Office 2021 Pro Plus?
After completing your purchase, you will receive an email containing:
Your Office 2021 Pro Plus OEM activation key
An official Microsoft download link
Step-by-step installation and activation instructions
How do I activate Office 2021 Pro Plus after installation?
Once you have downloaded and installed Office using the official Microsoft link provided, open any Office application (e.g. Word). You will be prompted to enter your product key. Enter the activation key from your email and follow the on-screen steps. An internet connection is required for the initial activation. For further guidance, refer to Microsoft’s official Office activation guide.
Does Office 2021 Pro Plus OEM require a Microsoft account?
No. The OEM version activates directly with your product key and does not require you to sign in to or create a Microsoft account. Once activated, it runs fully offline without any subscription or account binding.
Can I use the key on more than one PC?
No. Each OEM key is valid for one activation on one installation only. If you reinstall Windows or switch to a new device, a new key will be required. This is a fundamental characteristic of the OEM license type. If you need a license you can reuse across different machines, consider the Retail edition of Office 2021 Professional Plus.
Can I reinstall Office on the same PC if I reformat my hard drive?
No. The OEM key is consumed on first activation and is linked to that specific hardware. A full reinstall — even on the same machine after a reformat — will require a new activation key. Please keep this in mind before purchasing.
What apps are included in Office 2021 Pro Plus?
The Office 2021 Pro Plus suite includes:
Word 2021 – Documents and word processing
Excel 2021 – Spreadsheets and data analysis
PowerPoint 2021 – Presentations and slides
Outlook 2021 – Email, calendar, and contacts
Publisher 2021 – Desktop publishing and layouts
Access 2021 – Database creation and management
What are the system requirements for Office 2021 Pro Plus?
To run Office 2021 Pro Plus on Windows, your PC must meet the following minimum requirements:
How quickly will I receive my Office 2021 Pro Plus key?
In most cases, your activation key and download link are delivered by email within a few minutes of payment confirmation. Delivery is available 24/7, so you can get started any time of day.
What if my activation key does not work?
If you experience any issues activating your Office 2021 Pro Plus OEM key, our support team is available 24/7 to assist you. We back every purchase with a 100% money-back guarantee, so you can buy with confidence. Please contact us via the support channel provided in your order confirmation email.
Do I need to keep paying for Office 2021 Pro Plus?
No. Office 2021 Pro Plus is a one-time purchase — there are no recurring subscription fees. Once activated, your license is valid for the lifetime of the installation. This is one of the key advantages over Microsoft 365, which requires an ongoing monthly or annual subscription.
6 reviews for Office 2021 Pro Plus for Windows – OEM
Rated 5 out of 5
tahavafaietamalie01 (verified owner)–
The product was perfect and the installation process was crystal clear and smooth. Definitely recommend this product from this website.
Rated 5 out of 5
David Levi, Israel (verified owner)–
Delivered within minutes and easy to set up. Everything works exactly as advertised.
Rated 5 out of 5
Nikola Petrovic, Serbia (verified owner)–
Excellent product for the price. Activation was smooth and the software performs perfectly.
Rated 5 out of 5
Isabelle Laurent, France (verified owner)–
Very happy with my purchase. Office 2021 Pro Plus OEM is fast, stable, and ideal for everyday business tasks.
Rated 5 out of 5
Anders Kristensen, Denmark (verified owner)–
The key worked right away, and all apps are running without issues. Highly recommended for professional use.
Rated 5 out of 5
Olga Smirnova, Russia (verified owner)–
Superb package for the cost. Outlook and Excel are especially useful for my daily workflow.
Only logged in customers who have purchased this product may leave a review.
tahavafaietamalie01 (verified owner) –
The product was perfect and the installation process was crystal clear and smooth. Definitely recommend this product from this website.
David Levi, Israel (verified owner) –
Delivered within minutes and easy to set up. Everything works exactly as advertised.
Nikola Petrovic, Serbia (verified owner) –
Excellent product for the price. Activation was smooth and the software performs perfectly.
Isabelle Laurent, France (verified owner) –
Very happy with my purchase. Office 2021 Pro Plus OEM is fast, stable, and ideal for everyday business tasks.
Anders Kristensen, Denmark (verified owner) –
The key worked right away, and all apps are running without issues. Highly recommended for professional use.
Olga Smirnova, Russia (verified owner) –
Superb package for the cost. Outlook and Excel are especially useful for my daily workflow.