How to install Microsoft Office 2021
Microsoft Office 2021 — Install & Activation Guide (Professional Plus)
Follow the step-by-step instructions below to download, install, and activate Microsoft Office 2021 Professional Plus on Windows. We’ve kept your original order of steps, added clear calls-to-action, emojis for scannability, and Google-friendly markup.
🛒 Google Shopping Info: Digital software · Platform: Windows · Version: Office 2021 Professional Plus · Delivery: Email/Download · Brand: Microsoft · Condition: New.
🔹 How to Download Microsoft Office 2021 and Use Online Key
1) Download the Office setup file in your language 🌐
2) Mount the installer 💿
Double-click or right-click on ProPlus2021Retail.img, then click Mount.

3) Run the setup ▶️
Double-click or right-click on Setup, then click Open.
4) Wait for installation ⏳
Let the installer complete. This can take a few minutes.
5) Open an Office app 📝
Click Start and open any Office app (e.g., Word).
6) Wait for the activation prompt 🔔
When the Activation window appears, continue to the next step.
7) Enter your product key 🔑
Enter the Product Key you received after purchase, then click Activate Office.
8) All set — Office is activated ✅
Your Office is now fully activated and ready to use.