How to Install and Activate Microsoft Office 2021 Professional Plus (Step-by-Step Guide)
Microsoft Office 2021 Professional Plus is the latest standalone version of Microsoft’s powerful productivity suite. It delivers upgraded performance, modern features, and full compatibility with Windows 10 and Windows 11. Whether you’re a student, professional, or business user, Office 2021 Pro Plus includes essential applications like Word, Excel, PowerPoint, Outlook, and more—everything you need to stay productive and organized.
This complete installation and activation guide will show you how to download, install, and activate Microsoft Office 2021 easily. You’ll learn how to use your product key or activate Office by phone, step by step, to ensure a smooth and successful setup.
What Is Microsoft Office Phone Activation?
Microsoft Office phone activation is an official method that allows you to activate your Office product via phone instead of the internet. This process helps verify that your copy of Office is genuine and legally licensed.
Before You Start
Follow the instructions below carefully to avoid any errors during installation or activation.
Download Microsoft Office 2021
Download the latest Microsoft Office 2021 ISO installation file directly from the official Microsoft website. Choose the version that fits your system and follow the installation steps provided below.
🌍 Download Office 2021 Pro Plus ISO by Language
| 🌎 Language | 📥 Download Link |
|---|---|
| 🇸🇦 Saudi Arabia (Arabic) | Download |
| 🇧🇬 Bulgaria (Bulgarian) | Download |
| 🇨🇳 China (Simplified Chinese) | Download |
| 🇭🇷 Croatia (Croatian) | Download |
| 🇨🇿 Czech Republic (Czech) | Download |
| 🇩🇰 Denmark (Danish) | Download |
| 🇳🇱 Netherlands (Dutch) | Download |
| 🇺🇸 USA (English) | Download |
| 🇪🇪 Estonia (Estonian) | Download |
| 🇫🇮 Finland (Finnish) | Download |
| 🇫🇷 France (French) | Download |
| 🇩🇪 Germany (German) | Download |
| 🇬🇷 Greece (Greek) | Download |
| 🇮🇱 Israel (Hebrew) | Download |
| 🇭🇺 Hungary (Hungarian) | Download |
| 🇮🇹 Italy (Italian) | Download |
| 🇯🇵 Japan (Japanese) | Download |
| 🇵🇱 Poland (Polish) | Download |
| 🇵🇹 Portugal (Portuguese) | Download |
| 🇪🇸 Spain (Spanish) | Download |
| 🇸🇪 Sweden (Swedish) | Download |
💡 How to Install from Office 2021 ISO:
- Mount ISO: Right-click the downloaded
.imgfile and select Mount. - Run Setup: Open the mounted drive and run
setup.exe. - Complete Installation: Follow the prompts to finish installation.
After Install this Office application then choose a phone activation, if you bought a phone activation keys from us.
However, if you choose online activation, you will get the following error.
we will consider a situation when, when activating Microsoft Office 2021 online, an activation error appears as in the screenshot below, in this case, according to the advice from the second paragraph from the description of this error, you need to activate the application by phone. Activation is carried out using a robot answering machine, you will need to type numbers on the keyboard of your phone. After seeing this error, click “Back” and select the activation item by phone.
1) We remind you that to activate Office 2021 Pro Plus by phone. Also, to activate the application, you must first enter the product license key into it.
2) Then select: “I want to activate the software by telephone” and click “Next”.
After selecting “Activate by Phone”, choose your country or region, then send us your Installation ID. Our team will quickly generate and send you the Confirmation ID for a fast and hassle-free activation.
For assistance, contact us on WhatsApp or by Email: extedigital@gmail.com.
If everything went well. then the activation wizard will inform you about the successful activation of the application in the next step, after clicking on the “Next” button.
However if you got any error then contact us by opening a support ticket at extedigital.com