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Description
The Office 2021 Pro Plus bind key is redeemed online and linked permanently to your own Microsoft account. Instead of living on one installation, your licence appears in your account, so you can download and reinstall Office 2021 Professional Plus whenever you need to. Order from Mcdkeys and receive your key by email.
What Is an Office 2021 Bind Key?
A bind key is a product key you redeem on Microsoft's website. Once redeemed, the Office 2021 Professional Plus licence is tied to your Microsoft account rather than to a single PC installation. That makes reinstalling after a new drive, a Windows reset or a replacement PC straightforward.
- Product: Microsoft Office 2021 Professional Plus bind key
- Licence: one-time purchase for 1 PC, valid for lifetime use
- Binding: linked to your Microsoft account
- Redeem at: setup.office.com or redeem.microsoft.com
- Languages: all language packs included
- Platform: Windows only
Bind Key vs Standard Key
| Bind key | Standard key | |
|---|---|---|
| Office 2021 Pro Plus apps | Full | Full |
| Linked to your Microsoft account | Yes | No |
| Download from your account page | Yes | No |
| Reinstall after changing PC | Sign in and install again | Depends on the key |
Do not need account binding? See the standard Office 2021 Professional Plus key.
Apps Included
- Word, Excel and PowerPoint 2021: documents, spreadsheets and presentations with co-authoring and OneDrive saving.
- Outlook 2021: email and calendar with faster search.
- Access and Publisher 2021: databases and desktop publishing.
- OneNote: notebooks that sync across devices.
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
- Display: 1280 x 768 or higher
- Account: a free Microsoft account
How to Redeem and Activate Your Bind Key
- Go to setup.office.com and sign in with the Microsoft account you want to own the licence.
- Enter the 25-character key from your order email.
- Choose your country and language, then confirm.
- Download Office from your account page and run the installer.
- Open Word and sign in with the same Microsoft account. Office activates automatically.
To reinstall later, sign in at account.microsoft.com, open Services & subscriptions and select Install.
Office 2021 Support Status
Microsoft ended support for Office 2021 on 13 October 2026. The apps continue to work but no longer receive updates.
Office 2021 Bind Key FAQ
Which Microsoft account should I use?
Use an account you intend to keep. The licence stays with that account and cannot be moved to another one.
Can I reinstall Office after changing my PC?
Yes. Sign in to your Microsoft account and install it again. The licence covers one PC at a time.
Does it work on Mac?
No. This key is for Windows only.
What if the key cannot be redeemed?
Contact support@mcdkeys.com with your order number. Our Refund Policy explains your options.
Related Office Licences
Browse all Office 2021 licences.
Additional Information
Shipping & Return
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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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