In plain English: AutoCAD tried to read data from a protected area of your computer's RAM (Random Access Memory) or from a corrupt section of the drawing file (DWG), and the operating system said "no."
: This is a common fix for modern AutoCAD installation failures. Navigate to internal error 2602 autocad
: If you are deploying a custom patch (.msp), validate the MSI package using the Windows 2000 Logo Validation Suite to check for Media table references. In plain English: AutoCAD tried to read data