| Installation Type | Disk Space | RAM usage (idle) | Background processes | |------------------|------------|------------------|----------------------| | Full Office 2021 C2R | ~3.8 GB | ~180 MB | 4 services (C2R, Update, Telemetry, Lic. Mgr) | | Lite ODT (Word/Excel/PPT) | ~1.2 GB | ~90 MB | 1 service (C2R only) | | Lite + disabled updater | 1.2 GB | ~85 MB | 1 service (can disable manually) |

Many users search for an method—essentially a stripped-down, no-fat installation that installs only the core apps (Word, Excel, PowerPoint) without extra services or components.