OK, I'll bite.
All we can tell from your post is you have IV2012 and it won't start. We don't know if it has started before and has now just quite working.
We have no idea of your O/S and hardware spec's, if your machine is even capable of running Inventor.
Did you follow all the prerequisites to install Inventor.
Logged in with Admin rights
UAC turned off
Anti-Virus disabled (services may require stopping)
.NET 4.0 installed on your system (assuming Windows O/S)
Inventor 2020, In-Cad, Simulation Mechanical
Just insert the picture rather than attaching it as a file
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Delta Tau Chi ΔΤΧ