How to Fix Internal Error 2602 in AutoCAD: A Complete Troubleshooting Guide
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
If your system's installer engine is unregistered or misconfigured, it will misread database keys.
: If you downloaded AutoCAD via a browser, the installation package might be incomplete or "clipped." Security Software Interference internal error 2602 autocad
Here are the most effective solutions, ordered from quickest to most thorough:
When Internal Error 2602 occurs in AutoCAD, you may experience one or more of the following symptoms:
Corrupted temporary installation manifests can force the Windows Installer to read cached, broken data. Press Windows Key + R to open the Run dialog box. Type %temp% and press Enter. How to Fix Internal Error 2602 in AutoCAD:
| Severity | Medium/High (can block work) | |----------|-----------------------------| | Main cause | Drawing corruption or font issue | | Easiest fix | RECOVER or WBLOCK | | Worst case | Reinstall AutoCAD + delete user profile |
I recently ran into while trying to [install/update] AutoCAD [Your Version, e.g., 2025]. If you’re seeing this message,
Security suites often flag deeply nested installation files as false positives, deleting them mid-extraction and inducing Error 2602. Disconnect your computer from the internet temporarily. Press Windows Key + R to open the Run dialog box
Uninstall all Autodesk products, including the Autodesk Desktop App , Autodesk Access , and Autodesk Genuine Service . Delete the residual folders manually: C:\Program Files\Autodesk\ C:\ProgramData\Autodesk\ C:\Users\%username%\AppData\Roaming\Autodesk\ C:\Users\%username%\AppData\Local\Autodesk\ Attempt a fresh installation of AutoCAD. Conclusion
To re-register the installer, type the following command and press : msiexec /regserver Use code with caution.
: Confirm you have enough free space on your system drive (C:) beyond just the installation size requirements for temporary files. Autodesk Community, Autodesk Forums, Autodesk Forum Advanced Troubleshooting Reinstall Licensing Service Navigate to
Antivirus programs often intercept the rapid file extraction process used by Autodesk, resulting in missing file errors like 2602.