stands for Click-to-Run . This is the modern installation technology used by Microsoft for Office 2013 and later versions (including Office 2016, 2019, 2021, and Microsoft 365).

: Offers a "Download Office" feature to create offline installation files for later use. One-Click Activation

Typically supports a wider range of editions and provides more comprehensive tools for managing licenses.

: The "Lite" version is often a more streamlined or portable variant of the main tool.

When you see "Install Lite" within this context, it generally refers to rather than the full suite, or using a stripped-down installation method that consumes fewer resources during setup.