Internal Error 2602 in AutoCAD is a critical instability error that typically forces the software to close unexpectedly. Based on the error code and user reports, this issue is most frequently associated with graphic card driver conflicts or corrupted installation files. The specific inclusion of "High Quality" in the user query suggests the error may be triggered during high-performance rendering tasks or when the "High Quality Geometry" setting is enabled.
If you cannot even open the file without crashing, use the DWG TrueView method: internal error 2602 autocad high quality
While AutoCAD does not publicly document specific internal error codes in great detail, Error 2602 is generally attributed to the following factors: Internal Error 2602 in AutoCAD is a critical