In the context of AutoCAD, this means the installation wizard is looking for a specific table or file reference within the installer package ( .msi file) but cannot find it. This is usually caused by a corrupted download, localized permission blocks, or conflicts with leftover registry keys from previous Autodesk installations. Common Causes of the Error
A glitch during the download or extraction of the AutoCAD update or installation package. internal error 2602 autocad
Disable settings in the Windows Control Panel. In the context of AutoCAD, this means the
Temporarily disable your third-party antivirus software (e.g., McAfee, Norton, Avast). Disable settings in the Windows Control Panel
If none of the above works and you see (even new ones), it’s likely a core product defect. Provide:
Does the error happen at the or at a specific percentage of the installation? What operating system version are you currently running?
Retry the installation. Remember to re-enable your security software immediately afterward. 4. Clear Temporary Files and Free Up Space