Microsoft Office 2021 Professional Plus – 3/5/10 PCs
optional Software to take with you – USB stick, delivered by post

On the stick
- Setup in 32-bit and 64-bit · Office 2021
- Illustrated guide as a PDF
- Office Tool Remover for older versions
- Video: removing old keys
- App for remote technical support
With the stick, the key comes by post too – not by e-mail.
At a glance
Everything you need to know, in plain words.
- Devices3,5,10 PCEach licence is for one computer. Need it on more computers? Buy additional licences.
- Licence typePerpetual licencePay once: no subscription, no expiry.
- DeliveryInstantly by e-mailActivation code and download link arrive by e-mail right after payment.
-
Works onWindowsMake sure your computer is of this type.
- LanguageAll languagesChoose English or another language during installation.
- Instantly by e-mailUsually within minutes, for some products within 24 hours
- Pay securelyEncrypted checkout
- Invoice includedWith every order
- Support in 8 languagesDelivery by email · invoice included
Microsoft
Product description
With this pack, you license Microsoft Office 2021 Professional Plus on 3, 5 or 10 Windows PCs. You choose the pack size and receive a single product key enabled for exactly that number of activations.
The number 3, 5 or 10 refers to the devices on which Office may be activated. You receive one key – not several individual keys.
What you receive
| Platform | Windows |
|---|---|
| Devices | 3 / 5 / 10 PCs |
| Licence type | Volume licence |
| Term | Perpetual licence with no subscription |
| Delivery | Instantly by email after payment is received |
| Warranty | 12 months |
Included applications
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Word
-
Excel
-
PowerPoint
-
Outlook
-
OneNote
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Access
- Publisher
Perpetual licence instead of a subscription
You pay for this version of Office once and use it with no time limit. A Microsoft 365 subscription or a free upgrade to later versions of Office is not included. Unlimited use does not mean that Microsoft will provide security updates indefinitely.
Access is only included in Professional Plus for Windows, not in the Standard and Mac editions.
Publisher is included in this edition. Microsoft is retiring Publisher in October 2026; Office 2024 no longer includes Publisher.
Check before you buy
Please check your operating system, processor architecture and the compatibility of your add-ins. Remove older or parallel installations of Office before setting it up, and follow the guide for exactly this edition. The licence is for Windows only; it cannot be used to activate a Mac edition.
Support and updates
Microsoft support for Office 2021 ends in October 2026. The software can still be used afterwards but will no longer receive security updates. Bear this in mind when planning new workstations; the perpetual licence does not extend the support period.
Delivery, download and activation
Once payment has been received, you instantly receive by email – usually within a few minutes – the product key, the download link, an installation guide and your invoice. Install exactly the version and edition you purchased, and keep your order confirmation and invoice. If you have any questions before installing, our support team is happy to help at support@officelizenz24.de.
Optional: USB stick
You can optionally order Office on a USB stick as well. The stick is sent by registered post within Germany and arrives in 2–3 working days; shipping is free. If you order with a USB stick, you receive the product key by post instead of by email.
Invoice
Every order comes with an invoice. Tax treatment depends on the country of order and customer status; the information shown at checkout applies.
The image is for illustrative purposes. The licence is delivered digitally, without a data carrier or packaging – unless you choose the optional USB stick.
Questions before you buy? Contact us.
Microsoft and the product names are trademarks of Microsoft Corporation. MYKEYS24 is a shop operated by Arceus-Tech, Mainz. Arceus-Tech is a Microsoft Solutions Partner and CSP Indirect Reseller, but is not a Microsoft Corporation company.