Office 2021 Home & Student - Product Key

Office 2021 Home & Student - Product Key

Name: Office 2021 Home & Student - Product Key
Brand: Microsoft
SKU: 79G-05339
Price: 94.85 USD
Availability: InStock

$94.85

$133.21

Save $38.36

Sold by:	YouSoftware
License:	1 User/Computer
Region:	Worldwide
Languages:	All Languages Included

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Purchase an Office Home & Student 2021 licence from Mr Key Shop at a very affordable price, with secure payment methods and a money-back guarantee. The licence, which is 100% original, is delivered within seconds via email, and customer service offers free technical support in Italian.

Purchase a lifetime Office Home & Student 2021 licence: take a step forward with Mr Key Shop

Purchase an Office Home & & Student 2021 licence and save up to 70%. This suite remains the benchmark for students, teachers and families who need essential Microsoft tools without the constraints of a recurring subscription. This version has been designed to offer a clean, fast and goal-focused working environment. It is the “streamlined” package that includes everything you need to write essays, manage your family budget or create impressive school presentations.

* IMPORTANT: This version of Office Home & Student 2021 is not suitable for Mac devices. You can find the Microsoft Office 2021 Home and Student Mac version among the Office for Mac.
Purchase Office Home & Student 2021 from Mr Key Shop! Enjoy the new version for home use and study support from the famous productivity suite , with a revamped and modern user experience. Office 2021 Home and Student is the ideal edition whether you use Windows 10 or have already upgraded to Windows 11 or plan to install it. Browse our catalogue and save!

Why purchase an Office 2021 Home & Student licence

Many users underestimate the activation process, but it is precisely this step that transforms a simple installed software into a secure, legal and fully functional study tool.

Without valid activation, Office 2021 applications (Word, Excel, PowerPoint) will enter ‘Read-Only’ mode.

You will not be able to save new documents, edit existing ones or use advanced calculation functions.
By activating your Product Key, you permanently unlock the software, allowing you to work without interruptions and without annoying warning banners obscuring your workspace.

Software activated with an original Mr Key Shop licence communicates directly with Microsoft servers.

Only activated versions receive critical updates against malware and vulnerabilities. Using unactivated or ‘cracked’ software exposes your personal data to extremely high risks of identity theft.
Official activation guarantees that the software code has not been tampered with by third parties, ensuring maximum stability for Windows or macOS.

Purchasing and activating a Retail licence on Mr Key Shop offers you protection that dubious licences do not provide.

If you change computers, your original activation can be transferred to the new device. The licence is linked to you, not to the machine.
If you encounter problems during the product key entry phase, the Mr Key Shop team will assist you free of charge in Italian and English until activation is confirmed.

Function	Activated Software (Original)	Unactivated Software
Document Creation	✅ Enabled	❌ Blocked
File Saving	✅ Unlimited	❌ Disabled
Security Updates	✅ Included (until end of support)	❌ Not available
Technical Support	✅ Guaranteed by Mr Key Shop	❌ Non-existent
Legality and Privacy	✅ 100% Secure	⚠️ Malware/Penalty Risk

The Star Apps of Office 2021 Home & Student

Application	Key Innovation	Impact on Productivity
Word 2021	Co-authoring	Allows multiple people to work on the same document in real time, ideal for school group projects.
Excel 2021	XLOOKUP & LET	Drastically simplifies data searches and optimises complex calculations, making spreadsheets more readable.
PowerPoint 2021	Advanced recording	Record presentations with video narration and pen strokes, ready to share as digital lessons.
OneNote 2021	Focus & Stabilisation	A centralised hub for multimedia notes, now with optimised performance for high-resolution displays.
Teams (Personal)	Relational Hub	Integrated for personal use for the first time, it facilitates calls and chats with friends and family directly from the suite.

The Big News: Collaboration and Open Standards

OpenOffice Format Support (ODF 1.3): Office 2021 now guarantees full compatibility with open standards. This means you can exchange files with users of open-source software without losing the original formatting.
Performance and Visual Comfort: thanks to integration with the Windows 11 design, the suite offers superior fluidity. Dark Mode has been extended to reduce eye strain during long night-time study sessions.

Real-Time Collaboration: co-authoring is no longer exclusive to subscription versions. If files are saved to OneDrive, you can instantly see who is writing and where, minimising document version conflicts.

Expand your software ecosystem

To take full advantage of the power and new collaboration features of Office 2021 Home & Student, it is essential that your operating system is genuine and up to date: the ideal combination is with a best antivirus such as AVAST Premium Security or ESET Home Security Essential.

For your school projects, creative integration with Canva Pro will allow you to export spectacular graphics directly to PowerPoint 2021. If you use your PC to study digital handouts, a lifetime licence for EaseUS PDF Editor will be the perfect companion for editing PDFs as easily as you would in Word. Finally, don't risk losing your essays: use a backup software such as AOMEI Backupper Professional to save your progress, and browse securely with CyberGhost VPN when studying in the library or using public Wi-Fi networks.

Purchase an Office 2021 Home & Student product key from Mr Key Shop

Purchasing an original licence is not just a matter of legality, but also of technical assurance and real savings. Here are the main reasons why thousands of users choose our platform:

Advantage	The value for you	Mr Key Shop guarantee
Lifetime Licence	No monthly subscription: pay once and use it forever.	100% original Microsoft product.
Immediate Delivery	Receive the code via email within seconds of purchase.	Secure Digital Delivery.
Real Savings	Competitive prices with discounts of up to 70% off the list price.	Tax invoice included with every order.
Eco-Sustainability	We reduce our environmental impact by eliminating packaging and transport.	100% green company.
Technical Support	Experts at your disposal for installation and activation.	Free assistance in Italian and English.

What do Office Home and Student 2021 orders on Mr Key Shop include?

If you decide to purchase Office Home and Student 2021 on Mr Key Shop, once the transaction is complete, you will receive an e-mail with the following:

The activation key for your new Microsoft Office Home & Student 2021 package (lifetime licence for 1 user)
The link to download the official ISO file for installing Office Home & Student 2021
Clear and comprehensive instructions on how to download, install and activate Office Home and Student 2021
Free customer support contacts in Italian and English
The invoice

Other products available in the Mr Key Shop catalog

Windows Operating Systems: Windows 11 - Windows 10 - Windows 8 - Windows 7

Microsoft Office packages: Office 2024 - Office 2021 - Office 2019 - Office 2016 - Office 2013 - Office 2010 - Office for MAC - Microsoft 365 - Office App - Visual Studio - Project - Access - Visio - Outlook - Word - Excel - PowerPoint

Antivirus: Kaspersky - ESET - McAfee - Avast -Bitdefender - Norton - AVG - Acronis - Surfshark- IObit - Watchdog - Panda - Server Antivirus

VPN: HMA VPN - NordVPN - Surfshark - Cyberghost

Microsoft Server: Server 2025 - Server 2022 - Server 2019 - Server 2016 - Server 2012 - Storage Server 2016 - Storage Server 2012 - Server CAL - RDS CAL Server - SQL Server

Utilities: PDF converters - Disk Cleanup - Data Management - Screen Recorder - Invoicing Software - Backup Software - Data Recovery - Disk Partitioning - Deployment - 3D Modeling - Remote Desktop - Editing -Video Converter - Virtualization - Graphics

CAD: Autodesk - ZWSOFT – Rhino 3D - Ashampoo

Bundle: Software for Creators - Software for Gamers - Software for the Family - Software for Smart Working - Software Bundle for SMEs & Startups - Software bundle for students

Are you a reseller? Join MKreseller

Take your business to the next level with a solid and recognized partner in the original software licensing industry. With Mr Key Shop, you get access to exclusive price lists for resellers, special terms, and free professional support for you and your customers.

What's more, with MrKeyWallet, you can get extra credits on every top-up and further increase your margins: the more you invest, the more you earn. A system designed for those who really want to scale up.

Join the MKreseller programnow and discover all the benefits reserved for partners.

System Requirements

CPU	1GHz dual-core processor
GPU	DirectX 9 or higher with WDDM 2.0 or higher
Memory	4GB RAM
Storage	4GB of available space
Display	minimum 1280 x 768
Browser	latest versions of Internet Explorer, Microsoft Edge, Safari, Chrome, or Firefox
Operating Systems compatibility	Windows 10 and Windows 11

Download Microsoft Office Home and Student 2021: it is easy with Mr Key Shop

Download Microsoft Office Home and Student 2021 from Mr Key Shop – this is your best option! You will save money, and get your 100% genuine, guaranteed product key immediately after your purchase. Each order includes an official ISO download link, together with step-by-step, user-friendly instructions that allow you to install Office Home and Student 2021 in a few, simple steps. Our payment methods are secure and tracked, with a full money-back warranty in case of wrong purchase: buy your new Office Home and Student 2021 suite with full confidence. In case of doubt, get in touch with our free English-speaking Customer Service!

Install your Microsoft Office Home and Student 2021 suite

Install Microsoft Office Home and Student 2021, enjoy our professional service and join our fully Eco-Friendly approach. Visit our authorized Store and see all Mr Key Shop’s benefits! We offer great savings and a 100% green service. You’ll always get our genuine and guaranteed product in digital form, therefore you won’t have to wait for delivery nor to pay shipping costs: you’ll get everything you need in your inbox within a few seconds from your purchase. As a further value, we’ll work together to save our planet by reducing pollution and waste generated by the physical good transport system.

How to activate Microsoft Office 2021 Home & Student using a product key obtained from Mr Key Shop

Follow these steps to activate Microsoft Office 2021 Home & Student using the product key you purchased from Mr Key Shop:

Complete the installation of Office 2021
Start one of the apps, such as Word or Excel
On the activation screen, select the option to use the product key and NOT your Microsoft account
Type in the product key we provided you via email
Click Next and wait for the process to complete

In your order summary email, we always enclose instructions for completing this process, along with a secure download link and your 100% genuine and guaranteed product key. But just in case, remember that our technical support is always at your disposal, free of charge and in English!

1. What does Microsoft Office 2021 Home and Student include?

Office 2021 Home and Student includes Word, Excel, and PowerPoint, the essential tools for home and school productivity. It is a one-time purchase and does not require subscriptions.

2. On which devices can I install Office 2021 Home and Student?

You can install Office 2021 on a compatible Windows PC. Make sure your device meets the minimum system requirements.

3. Can I use Microsoft Office 2021 Home and Student for commercial purposes?

No, the Home and Student version is intended for home and school use only. For business use, we recommend Office 2021 Professional.

4. Do I need a subscription to use Office 2021 Home and Student?

No, Office 2021 Home and Student is a one-time purchase. Once you purchase and activate it, you won't have to pay any additional fees.

5. Can I transfer Office 2021 Home and Student to another device?

Yes, but you can only use it on one device at a time. To transfer your licence, you'll need to uninstall Office from your old device before installing it on a new one.

6. Does Office 2021 Home and Student receive updates?

It receives security and performance updates, but not new features introduced in future versions. It is software with static functionality.

Need more information? Contact us for personalised assistance!

7. Is Office 2021 Home & Student compatible with macOS?

Yes, this version is available for both PC and Mac. However, please note that the licence is valid for activation on one device only. If you purchase the Windows version, you will not be able to use it on macOS and vice versa. Be sure to choose the correct version in the Mr Key Shop catalogue before purchasing.

8. What does ‘lifetime licence’ mean?

It means you will never have to pay for a subscription. Once you have purchased the product key from Mr Key Shop and activated the software, the suite will remain yours forever. In 2026, this is the most economical solution to avoid the recurring monthly costs of cloud versions.+

9. Can I transfer the licence to a new computer?

Yes, as it is a Retail licence, you can transfer it. If you purchase a new PC or Mac, simply uninstall Office from your old device and reinstall it on your new one using the same Product Key. The licence is linked to you, not to the physical machine.

10. Do I need an internet connection to use Word or Excel?

An internet connection is only required for the initial download, product key activation, and to receive security updates. Once installed, all applications (Word, Excel, PowerPoint, OneNote) work 100% offline, allowing you to study anywhere without interruption.

11. Can I upgrade from a previous version (e.g. Office 2016)?

No, before activating Office 2021 Home & Student, it is best to uninstall previous versions to avoid registry conflicts. Your old files will be fully compatible with the new suite.