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
Erni Vald
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I bought a key for Office 2024 Professional Plus. I received the key 5 minutes after payment. Installation, following the instructions, took 15 minutes. The price of 15 Euros made me a bit skeptical, but everything works.
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vladimir omahna
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Owner's reply Thank you, Vladimir! We deeply appreciate your feedback and your support is invaluable to us. Should you have any comments or suggestions, feel free to let us know. We're always here to assist you. Best regards, Top Key Shop
Posted on Google
מיכה וייס
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Satisfide
Owner's reply Thank you for your review! We're so pleased to hear that you had a satisfactory experience with us. If there's anything more we can do for you, feel free to reach out. Best regards, Top Key Shop
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Marko “Panki” Preloznjak
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odlicno
Owner's reply Hvala ti, Marko! Drago nam je da si zadovoljan našom uslugom i proizvodima. Ako ikada budeš imao bilo kakvih pitanja, slobodno nam se javi. Radujemo se da ćemo te ponovno vidjeti! Best regards, Top Key Shop
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Goran Kapic
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Owner's reply Thank you, Goran, for your review! We're glad you had a great experience. We appreciate your support. Best regards, Top Key Shop
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Κώστας Μπαράκος
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Owner's reply Thank you very much for your support, Κώστας! We're grateful for your feedback and appreciation. It motivates us to continue providing great service. Best regards, Top Key Shop
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Maid Nezirić
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Owner's reply Thank you, Maid, for leaving us such a positive review! Your support means a lot to us, and we’re thrilled to see you satisfied. If you ever have any further feedback or questions, don’t hesitate to let us know, as we're always here to assist. Best regards, Top Key Shop
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Damir
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Owner's reply Thank you, Damir, for your rating! We truly value your feedback and strive to provide excellent service. If you have any suggestions or further thoughts to share, feel free to let us know. Best regards, Top Key Shop
Posted on Google
Marko Pritržnik
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Owner's reply Thank you for your amazing feedback, Marko! We're thrilled to know you had a great experience with us. If you ever need assistance or have questions, feel free to reach out. Best regards, Top Key Shop
Posted on Google
Leonard Inkret
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Good, fast, cheap. Keys work
Owner's reply Thank you, Leonard, for your concise and positive feedback! We're delighted to hear our service met your expectations in terms of quality, speed, and affordability. Should you need any assistance or additional keys in the future, please don't hesitate to reach out. We appreciate your support and look forward to serving you again! 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.
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