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Have your 25-character product key ready. If you bought it from a third-party retailer, it should be in your confirmation email. 2. Download and Installation
Office 2021 Professional Plus – Installation & Activation Instructions
Open the downloaded file and follow the on-screen prompts to complete the installation. Microsoft Office Professional Plus 2016-2021 Re...
Ensure your PC has at least a 1 GHz processor and 2 GB of RAM.
Go to setup.office.com or microsoft365.com/setup . Have your 25-character product key ready
To install and activate , you typically need to link your product key to a Microsoft account and use the official setup portal. 1. Pre-Installation Steps
Click Install (or "Install Office") to download the setup file ( setup.exe ). Download and Installation Office 2021 Professional Plus –
To avoid software conflicts, uninstall any existing Office versions via the Control Panel > Programs and Features .