is a Microsoft streaming and virtualization technology used to install and update Microsoft 365 Apps, Office 2016/2019/2021, and related products. Unlike traditional MSI installations that require a full, localized download before installation begins, C2R allows users to start using Office applications while the rest of the suite streams in the background.
In the evolving landscape of corporate IT, the method of delivering software has undergone a significant transformation. Gone are the days of massive, slow MSI (Microsoft Installer) packages that took hours to install and even longer to patch. Today, the standard for deploying Microsoft 365 Apps (formerly Office 365 ProPlus) is , or Click-to-Run . c2r office