Office 2021 Professional Plus Bind Key License Windows

How a Microsoft account key works: redeem at setup.office.com, install any time

Office 2021 Professional Plus — Bind Key (Windows)

$107.00

The complete Office 2021 suite linked to your Microsoft account — reinstall anytime without needing to find your key. Word, Excel, PowerPoint, Outlook, Publisher, Access, OneNote.

Choose how you activate

Phone activationCheapest. Free Confirmation ID from our Get CID page — no call. $7.99 View Online keyEasiest. Enter the key and it activates over the internet. $14.49 View

Microsoft account keyLinked to your account — reinstall any time. $107.00 Selected

What happens after you pay

Your key appears on screen and in your email within seconds.
A step-by-step activation guide comes with your key.

Genuine Microsoft license Personal support chat 7 days to activate — guaranteed Secure checkout by Stripe

Activation Microsoft account — redeem once, reinstall any time

License One-time purchase — permanent

Devices 1 PC

Transfer Linked to your Microsoft account

Warranty Activate within 7 days — free replacement if it doesn't work

Delivery Instant to a few minutes, depending on demand and stock — on your order page

Best for: Windows users who want the full Office suite and prefer account-linked activation for easy reinstallation.

Bind Key vs Online Key — what changes?
A Bind Key links directly to your Microsoft account when redeemed. After that, Office lives in your account dashboard — reinstall on any new PC by simply signing in, no key required. Online Keys use the traditional product key you enter at installation. If you regularly reinstall Windows or switch PCs, a Bind Key is more convenient.

Is Pro Plus what you need?
Pro Plus includes Publisher and Access alongside the standard Office apps. If you don’t use those tools, Home & Business gives you Word, Excel, PowerPoint, Outlook, and OneNote at a lower price.

What’s included:

Word, Excel, PowerPoint, Outlook, OneNote
Publisher — desktop publishing and print layouts
Access — database management
Security updates through 2026

1x Digital license key
Download link to official installer
Step-by-step activation guide
Invoice / proof of purchase

Processor: 1.1 GHz or faster (x86 or x64-bit, 2-core)
RAM: 4 GB
Storage: 4 GB available disk space
Display: 1280 x 768 resolution
Graphics: DirectX 9 or later with WDDM 2.0
Operating System: Windows 10 or Windows 11
Internet: Required for activation

Purchase — Complete your order securely
Receive Key — Your key appears on your order page right after payment, and we email you a link. Click “Reveal key” to see it
Redeem — Go to setup.office.com, sign in with your Microsoft account and enter your key. The key stays linked to that account
Install — Download Office from account.microsoft.com/services and sign in to activate it

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How this key works

Redeemed once at setup.office.com with your Microsoft account. The license then stays in that account permanently.

Reinstalling

New computer

Yes. Sign out of Office on the old device and install from your account on the new one (one device at a time).

Compare all key types — OEM, Retail, phone, Microsoft account →

Frequently Asked Questions

Yes. It's a genuine Microsoft product key that links to your Microsoft account on Microsoft's own servers, covered by our 7-day activation guarantee.

Usually instantly, and at most a few minutes depending on demand and stock. Your key appears on your order page as soon as your payment is confirmed, and we email you a link to it. The key stays hidden until you click Reveal key.

Word, Excel, PowerPoint, Outlook, Access, Publisher, and OneNote — the complete Professional Plus suite.

A Bind Key links permanently to your Microsoft account. Once activated, you can reinstall Office from your account page anytime without needing the product key again.

Yes. One-time purchase. No subscription fees.

Yes. Sign in to your Microsoft account at account.microsoft.com and download Office again — no product key needed.

Send our support team your order number and a screenshot of the activation error. Most problems are an edition mismatch or a typo, and we'll help you fix it. If the key really is faulty, we send a free replacement within 24 hours — or a full refund if we can't replace it.

No. Professional Plus bind keys are Windows-only. For Mac, see our Home & Business for Mac products.