The file name is a descriptive filename for the Autodesk installation package: AutoCAD 2021: The version of the software. English: The language package. Win 64bit: Designed for 64-bit Windows operating systems.
Select from the main landing screen.
Before attempting to extract and run the installer, ensure your computer complies with the official Autodesk System Requirements for AutoCAD 2021 : Minimum Requirement Recommended Requirement 64-bit Windows 8.1 / 10 / 11 64-bit Windows 10 or 11 Processor Speed 2.5–2.9 GHz processor 3.0+ GHz processor (or multiple cores) System Memory (RAM) Display Resolution 1920 x 1080 with True Color 4K displays (3840 x 2160) supported Disk Space 7.0 GB free space (for extraction + installation) SSD storage with 10+ GB free space Graphics Card 1 GB GPU with 29 GB/s Bandwidth (DirectX 11) 4 GB GPU with 106 GB/s Bandwidth (DirectX 12) Step-by-Step Installation Process Autocad 2021 English Win 64bit Dlm.sfx