Downloading and installing the full version of (a one-time purchase) is done officially through your Microsoft account or specific deployment tools for volume licenses. Standard Retail Download (Home & Student, Home & Business)

: Open the downloaded .exe (Windows) or .pkg (Mac) file and follow the on-screen prompts to complete the installation. Business & Volume License Download (Professional Plus)

: Visit your Microsoft Account Dashboard and find the "Products you've purchased" section.

For versions like , Microsoft uses a command-line deployment method rather than a simple download link: How to install ms office 2021 for free

If you have already purchased a product key or a retail copy, follow these steps: