Instead of using the "Install Now" method, sign in to your Autodesk Account and use the Browser Download option to get the full installation package.
The most straightforward fix is ensuring the installer has full access to your system. internal error 2602 autocad
If the error only happens when you open one specific drawing but not others, the file is likely corrupt. Specifically, Error 2602 has been linked to in 3D modeling. If a drawing tries to render a "Realistic" or "Conceptual" visual style using a buggy driver, it will crash instantly. Instead of using the "Install Now" method, sign
5. Use the Microsoft Program Install and Uninstall Troubleshooter the file is likely corrupt. Specifically
Go to > Update & Security > Windows Security > Virus & threat protection .