
Get ready to install and activate Microsoft Office 2021 Pro Plus smoothly. Here’s a clear, concise guide to help you through it:
1. Uninstall Previous Versions of Office
Before installing Office 2021, it’s crucial to remove any existing Office versions to prevent conflicts. Visit this page for a simple guide on how to uninstall Office using the Control Panel or Microsoft’s removal tool.
2. Download the Office 2021 Installation File
Use the download link we sent you via email to start downloading the Office_2021_EN_64Bits file. Once downloaded, find it in your Downloads folder.

3. Install Office 2021 Pro Plus
Double-click the Office_2021_EN_64Bits file to begin the installation. The process will start automatically and may take a few minutes depending on your internet speed. Stay connected and let the installer run until completion.

4. Open an Office Application
After the installation is complete, go to the Windows search bar and type Word, Excel, or any other Office app. Click to open the app and navigate to File > Account.

5. Activate Your Office 2021 Pro Plus
In the Account section, check if you are signed in. Signing in is optional, but it can help link your Office product to your account. To activate:
- Click Switch License or Change product key.
- Enter the activation key provided to you after your purchase. If you haven’t bought one yet, you can purchase it from our website.

Troubleshooting and Support
If you encounter any issues during installation or activation, reach out to our 24/7 support team via info@firstsoftwares.com or live chat for assistance.