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Microsoft Office 2021 Professional Plus (5 PC) (Digital Download)
139.99 $ USD
- ✔One key, 5 activations: install Office on up to 5 Windows PCs
- ✔7 apps: Word, Excel, PowerPoint, Outlook, OneNote, Publisher and Access
- ✔Save vs. buying 5 single keys: about $28 per PC
- ✔Fast delivery: product key and download link by email
- ✔Ideal for families, small offices and teams, with free support
- ✕Windows only, not for Mac
Need the installer? Office 2021 download and activation guide
Microsoft Office 2021 Professional Plus – 5 PC
Equip your whole household or small office with one order. This Office 2021 Professional Plus 5 PC key activates the complete Office suite on up to 5 Windows PCs, including Publisher and Access. Pay once and keep it, with no monthly subscription and no renewal.
ℹ️ Good to know before you buy
You receive one product key with 5 activations: use the same key on each PC. Microsoft's support for Office 2021 ended on October 13, 2026. Office keeps working and you can still activate it, but it no longer receives security updates. For updates until 2029, see Office 2024 Pro Plus. Need just one PC? See Office 2021 Pro Plus (1 PC).
Why Choose the 5 PC License?
🖥️ 5 PCs, one key
Install and activate Office on up to 5 Windows PCs with a single product key.
👨👩👧 Perfect for families & teams
Give every computer at home or in your small office the same full Office suite.
🧾 Lower price per PC
About $28 per PC, instead of $34.99 for each single key.
What's New in Office 2021
📊 Smarter Excel
XLOOKUP, XMATCH, LET and dynamic arrays make lookups and formulas faster and easier.
🌙 Dark Mode
A full dark theme in Word and other apps that's easier on your eyes.
🎥 Better PowerPoint
Record presentations with narration, replay ink drawings, and reorder slide elements for screen readers.
🗄️ Publisher & Access
Create flyers and newsletters, and build databases. Access 2021 adds a Date/Time Extended type.
What You Get
| License | One-time purchase, lifetime use |
| Activations | 1 key for up to 5 Windows PCs |
| Delivery | Product key and download link by email |
| Activation | Online, with a free Microsoft account |
| Apps | Word, Excel, PowerPoint, Outlook, OneNote, Publisher, Access |
| Support | Free activation help by email and Live Chat |
System Requirements
| Operating system | Windows 11 or Windows 10 |
| Processor | 1.6 GHz, 2-core |
| Memory | 4 GB (64-bit), 2 GB (32-bit) |
| Storage | 4 GB available disk space |
| Display | 1280 × 768 |
| Other | Internet access and a Microsoft account |
🛠️If Your Key Doesn't Activate
- Install from your delivery emailUse the download link we sent you on each PC. If you have another Office version installed, uninstall it first and restart.
- Enter the same key on each PCOpen Word, go to File → Account → Activate Product, and paste the key from your email.
- Seeing "Unlicensed Product"?Usually a Microsoft 365 trial is blocking it. Our Unlicensed Product guide fixes it step by step.
- Used all 5 activations?Contact us with your order number. We'll check your activations and help if you reinstalled or replaced a PC.
Still stuck?
Send us your order number and a screenshot. We typically reply within 1–6 hours.
💬Frequently Asked Questions
Do I get 5 keys or 1 key?
Does it include Publisher and Access?
Can I use it on a Mac?
Why is Office asking me to subscribe or start a trial?
What if I replace one of my PCs?
What's your refund policy?
Activation Help Guides
Instant Digital Delivery
This is a digital product, so there's nothing to ship and no waiting for a package. Your key arrives by email, usually within 10 minutes after payment, and never later than 6 hours.
1. Complete your payment
Pay securely by card, PayPal or Google Pay. Your order is confirmed instantly.
2. Check your email
Usually within 10 minutes (up to 6 hours at busy times), you receive your product key, the official download link, and step-by-step instructions.
3. Install & activate
Follow the instructions in the email. Activation takes just a few minutes.
| Delivery time | 10 minutes to 6 hours |
| Delivery method | |
| Shipping cost | Free, no physical shipping |
| Payment | Visa, Mastercard, American Express, Discover, PayPal, Google Pay |
📩 Didn't receive your email?
Check your Spam or Promotions folder first. Still nothing? Contact us at support@krbkeys.com or via Live Chat with your order number, and we'll resend it right away.
