Why choose it
Essential Office 2021, no subscription
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Home & Student 2021
Perpetual ESD licence for home and study: Word, Excel and PowerPoint under Microsoft 2021 terms.
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3 desktop apps
Documents, sheets and presentations with classic Office apps.
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Windows or Mac
Edition for Windows and macOS supported for Office 2021.
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Digital by email
Key and instructions after payment.
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setup.office.com
Activate on Microsoft’s portal and install the 2021 apps.
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2021 release
Perpetual 2021 suite—not Microsoft 365 continuous feature updates.
System requirements
Compatibility and technical requirements
Approximate values from Microsoft documentation; always check the latest requirements before installing.
Processor
Windows: at least 1.6 GHz dual-core. Mac: Intel or Apple Silicon compatible with a supported macOS (where the SKU is PC/Mac).
Operating system
Windows 10/11; macOS versions supported by Microsoft for the indicated suite.
Memory (RAM)
At least 4 GB recommended for desktop apps; more for large files or advanced features.
Disk space
Typically at least 4 GB free for a desktop install; check Microsoft’s official requirements.
How it works
Three steps to get started
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Order and payment
Add the product to your cart and complete secure checkout with the available methods. You receive an order confirmation as shown at checkout.
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Digital delivery
We email the product key and instructions, usually within minutes after payment approval.
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Activation
Redeem the code at setup.office.com, link the licence to your Microsoft account and install the apps from office.com.
FAQ
Answers before you buy
Which apps are included?
Word, Excel and PowerPoint. Outlook is not part of Home & Student.
Is it a subscription?
No—perpetual 2021 licence, not Microsoft 365.
Windows or Mac?
Yes where indicated on this page; follow Microsoft’s requirements for your platform.
How do I activate?
With the emailed key at setup.office.com and install via office.com.
Difference vs Office 2024?
2024 is newer. Choose 2021 if you need that generation or this page’s offer.