IMPORTANT: To ensure a successful installation of the lifetime version of Office, we recommend that you uninstall any previously installed versions of Office on your computer, including Office 365, as they may cause conflicts during installation. Please follow the steps in this guide

IMPORTANT: For this process, you only need an internet connection. The entire procedure will be carried out through Microsoft's official self-service website.

1. Download Office 2021 Professional Plus

Obtain the official installer from Microsoft – You can download the Microsoft Office 2021 installer (ISO file) directly from Microsoft’s servers using:

Download Office 2021 Professional Plus

2. Installation

2.1  Install the software – Open the downloaded file by double-clicking it to view its contents. Then, to begin the installation process, simply double-click the “Setup” file.

2.2 The installation procedure for Microsoft Office 2021 will commence automatically. Please allow the process to complete uninterrupted. The duration of the installation depends on network bandwidth and system performance; typically, it is completed within 10–15 minutes.

Upon successful installation, a notification window will be presented to confirm that Microsoft Office 2021 has been fully installed.

 2.3 Once Microsoft Office 2021 has been installed, it must be activated. To initiate activation, launch any Office application, such as Excel.

For systems running Windows 10, open the Start menu, locate an Office 2021 application (e.g., Excel), and execute it to proceed with the activation process.

For systems running Windows 11, open the Start menu, navigate to All apps, locate Excel, and launch the application.