| Feature | Click-to-Run | MSI | |---------|-------------|-----| | Installation time | 2–5 minutes (streamed) | 15–30 minutes | | Update size | Delta patches (~100 MB) | Full MSP or full product (~2 GB) | | Ability to customize install (choose features) | Yes (via XML) | Yes (via MST transform) | | Side-by-side with older Office | Yes (up to 4 versions) | No (conflicts) | | Administrative control over updates | Via GPO / ODT | Via WSUS / SCCM | | Offline network share deployment | Yes (pre-download) | Yes (native) | | Support for Windows on ARM | Yes (C2R only) | No |
For enterprise environments with SCCM (MECM) or Intune, ODT supports: office 2013-2024 c2r install
: Office 2019 was the first volume-licensed version to require C2R and disallow MSI-based installation. Each Office C2R product runs inside a lightweight
If not handled, side-by-side MSI and C2R installations of the same major suite lead to registry conflicts and broken file associations. C2R uses an .
Unlike MSI installations that write thousands of registry keys and system files, C2R uses an . Each Office C2R product runs inside a lightweight isolated container. Key characteristics: