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Description
A Microsoft Office 2021 Professional Plus key gives one Windows PC the complete Office 2021 suite for a single payment. You get Word, Excel, PowerPoint, Outlook, Access, Publisher and OneNote with no subscription to renew. Order from Mcdkeys and receive your retail licence key and download link by email.
Buy an Office 2021 Professional Plus Retail Licence Key
- Product: Microsoft Office 2021 Professional Plus retail key
- Licence: one-time purchase for 1 PC, lifetime use
- Delivery: product key and official Microsoft download link by email
- Languages: all language packs included
- Platform: Windows 10 and Windows 11
What Is Included in Office 2021 Professional Plus?
Word 2021
Write reports, letters and long documents with a cleaner ribbon, real-time co-authoring, improved picture tools and Line Focus for distraction-free reading.
Excel 2021
Analyse data with XLOOKUP, dynamic arrays, the LET function and custom Sheet Views, alongside PivotTables, charts and hundreds of built-in formulas.
PowerPoint 2021
Record narrated slide shows, replay ink strokes and use smoother transitions and richer media support for sharper presentations.
Outlook 2021
Manage email, calendars and contacts with faster search and built-in translation.
Access, Publisher and OneNote
Build desktop databases in Access, design brochures and flyers in Publisher, and keep searchable notebooks in OneNote that sync through OneDrive.
Why Choose Office 2021 Professional Plus?
- Pay once: no monthly or yearly fees.
- Works offline: classic desktop apps installed on your PC.
- Business-ready: the full Pro Plus set including Access and Publisher.
- Familiar files: full compatibility with .docx, .xlsx and .pptx.
System Requirements
- Operating system: Windows 10 or Windows 11
- Processor: 1.6 GHz or faster, 2 cores
- Memory: 4 GB RAM
- Storage: 4 GB of free disk space
- Graphics: DirectX 9 or later with WDDM 2.0
- Display: 1280 x 768 or higher
How to Install and Activate Office 2021 Professional Plus
- Download Office 2021 from the official link in your order email.
- Run the installer and wait for setup to finish.
- Open Word or Excel.
- Enter your 25-character key when prompted, or go to File, then Account, then Change Product Key.
- Follow the prompts to activate online.
Office 2021 Support Status
Microsoft ended support for Office 2021 on 13 October 2026. The apps keep working but no longer receive updates. If you want a version Microsoft still supports, choose Office 2024 Professional Plus.
Office 2021 Professional Plus FAQ
Is Office 2021 Professional Plus a subscription?
No. It is a one-time purchase.
How many PCs can I activate?
One. For more, see the 5 PC licence.
Does it work on Windows 11?
Yes. It runs on Windows 10 and Windows 11.
Does it work on Mac?
No. See Office 2021 Home and Business for Mac.
What if my key does not activate?
Contact support@mcdkeys.com or use live chat. Our Refund Policy explains your options.
Related Office Licences
- Office 2021 Pro Plus bind key: linked to your Microsoft account.
- Office 2021 Pro Plus LTSC: lower-cost volume edition.
- Office 2019 Professional Plus
Browse all Office 2021 licences.
Additional Information
Shipping & Return
Reviews
How delivery works
1
Place your order
Add the licence to your cart and check out with a valid email address.
2
Get your key by email
Once payment is confirmed, your key is sent to your inbox, usually within minutes.
3
Activate
Enter the key in your software to activate it. Need help? Our team is on email and live chat.
Why buy from Mcdkeys
Genuine licences
Authentic Microsoft product keys.
Instant delivery
Sent by email, with no shipping and no waiting for a box.
Secure checkout
Encrypted payment through trusted gateways.
Real support
Help by email and live chat if you get stuck.
Frequently asked questions
How fast will I get my key?
Most orders are delivered by email within 5–30 minutes of payment confirmation. Orders that need manual processing or verification can take up to 24 hours.
Do you ship a physical product?
No. This is a digital product. Your key is sent to the email address you enter at checkout.
I haven't received my key. What should I do?
Check your spam or junk folder and confirm the email address on your order. If it still isn't there, contact support@mcdkeys.com with your order number.
How do I activate it?
Enter the key in your software's activation screen. If you need help, contact us by email or live chat.
What is your refund policy?
See our Refund Policy for full terms.
Which payment methods do you accept?
The available methods are shown at checkout.
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