Microsoft Office 2021 Professional Windows
Immediate delivery by email
·One-time purchase · No subscription · Usable permanently
Tax included
Why are our prices so low?
Transparency is important to us. That’s why we offer you high-quality software at fair prices.
Direct Purchase
We buy product keys in large quantities directly from authorized distributors – and pass the price advantage on to you.
Digital only
No physical shipping, no inventory, no packaging. This saves costs that you don’t have to pay.
Low margin
We focus on volume rather than high margins. Many satisfied customers are our business model.
Legally compliant & verified
All product keys are approved for resale in accordance with EU law (ECJ ruling C-128/11).
In 3 steps to your software
Activated software in just 3 steps
Order
Select product and pay securely
Get key
Product key immediately by email
Activate
Download the software, enter the key, done!
Done! Your software is ready to use.



We are here for you
Real people, real support! Our team is happy to help you with installation, activation, or any questions. Mon–Fri: 9 AM–4 PM.
Customer reviews
Frequently Asked Questions
Everything you should know before buying
Microsoft Office 2021 Professional for Windows – complete Office suite for business & companies
Microsoft Office 2021 Professional offers a powerful combination of modern Office programs for professional users, businesses, and self-employed professionals. With applications such as Word, Excel, PowerPoint, Outlook, Publisher, and Access, you can create and manage documents, spreadsheets, presentations, and databases efficiently.
At Officekey24, you receive the an immediately usable product code including an official Microsoft download. Ideal for users who need a reliable Office solution without a monthly subscription.
Why Microsoft Office 2021 Professional?
Office 2021 Professional is designed for users who work with documents every day, work on analyses and presentations. The programs have been technically optimized, work faster and offer high compatibility with current Windows systems.
Perfect for:
- Businesses & business users
- Self-employed professionals & freelancers
- Home office workstations
- Organization and project management
- professional document creation
Included programs
Create professional documents, design layouts, and edit text efficiently.
Powerful spreadsheet software for analysis, planning, and data evaluation.
Create modern presentations with animations, charts, and visual effects.
Organize email management, calendars, tasks, and contacts centrally.
Design marketing materials such as flyers, brochures, and presentation documents.
Create databases and structure business processes efficiently.
Benefits of Officekey24
- Immediate product code after purchase
- Permanent full version with no subscription
- Original Microsoft download
- Fast installation
- Compatible with Windows 10 and Windows 11
- Personal support from Officekey24
System requirements
| Operating system | Windows 11 or Windows 10 |
|---|---|
| Processor | at least 1.6 GHz or faster |
| Memory | 4 GB RAM or more |
| Hard drive | at least 4 GB of free storage |
| Display | 1280 × 768 resolution |
| Internet | required for download and activation |
Other Microsoft Office versions
What's included
- Product code that can be activated immediately
- Official Microsoft download
- Installation guide
- Customer support from Officekey24