Ensure your computer meets these minimum specs before installing: Windows 10 (64-bit), 8.1, or 7 SP1. Processor: 1 GHz or faster. Memory (RAM): 2 GB (32-bit) or 4 GB (64-bit). Disk Space: 4.0 GB for installation.
Before installing, verify compatibility. AutoCAD 2018 is lighter than 2024/2025, but still demanding. autocad 2018 download and install permanently link