If your system's installer engine is unregistered or misconfigured, it will misread database keys.
If the error persists, your Windows Installer service might be unregistered: Open the as an administrator. Type msiexec /unreg and press Enter . Type msiexec /regserver and press Enter . Restart your computer and try AutoCAD again. If you'd like, let me know:
| Cause | Explanation | |-------|-------------| | | Most common — damaged database objects (dictionary, orphaned entities) | | Corrupt or missing font | Shape file ( .shx ) or TrueType font issues | | Third-party add-on | Custom ARX/LISP/VBA crashing AutoCAD’s internal structure | | Registry corruption | AutoCAD installation or profile keys damaged | | Permission problem | Cannot write to temp folder or drawing location | | Hardware acceleration | Graphics driver or DirectX conflicts | | Profile/Workspace corruption | Corrupt .aws or .arg file |
Here’s a complete review of the — what it means, common causes, and how to fix it. internal error 2602 autocad
Insufficient administrative rights or conflicts with antivirus/firewall software during the installation process.
Download the from the official Microsoft support website.
Restart your computer and attempt the AutoCAD installation again. If your system's installer engine is unregistered or
AutoCAD Internal Error 2602 is almost always an indicator of a conflicted or broken installation environment rather than a hardware fault. By downloading a fresh offline installer, wiping out legacy residual folders, and utilizing Microsoft’s database repair tools, you can bypass the duplicate key conflict and get your design workspace back online. To help narrow down the specific cause, let me know:
To help narrow down the cause if the issue persists, let me know: What are you trying to install?
Close the command prompt and try running the AutoCAD setup again. 6. Perform a Complete Autodesk Clean Uninstall Type msiexec /regserver and press Enter
Corrupted prerequisites are a common cause of installer failures.
If you are still experiencing difficulties, tell me you are using, and whether this error happens during installation or when opening a drawing , so I can provide a more specific solution. Share public link
Has anyone else found a specific registry fix or a different workaround for this? Any advice would be appreciated! AutoCAD 2019 1.2 Update Error Message - Forums, Autodesk