Before Installation. Make sure that your Windows OS is updated before you begin to install AutoCAD 2019 or AutoCAD LT 2019. If it' System requirements for AutoCAD Mechanical 2019 - Autodesk
: Open the downloaded Setup.exe file and select Install .
: Ensure your PC meets the minimum specs : OS : Windows 10 (64-bit), 8.1, or 7 SP1 (32-bit or 64-bit). RAM : Minimum 8GB (16GB recommended). Disk Space : At least 6.0 GB of free space.
: Launch the program and enter your serial number and product key provided in your Autodesk account to activate your license . Autodesk AutoCAD 2019 and AutoCAD LT 2019 Readme
: Students and educators can download the full version of AutoCAD for free by creating an Autodesk account and verifying their institutional status.
: Sign in to your Autodesk Account and select the 2019 version for your operating system (x32 or x64).