Welcome to the Forum.
A little more information is required, actually a whole lot more information is required.
1.) What version/release of Inventor
2.) What error are you getting
3.) Is your hardware and software meet the minimum requirements for Inventor
4.) Did you follow the installation prerequisites to install Inventor.
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
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