Understanding the underlying causes of this error allows you to implement specific, proven troubleshooting steps to resolve the issue and successfully install AutoCAD. What is AutoCAD Internal Error 2602?
: The error often stems from a corrupted download of the .msp or .msi file.
Which (e.g., 2024, 2025, 2026) are you installing? Your Windows operating system version.
Security software may flag AutoCAD installation files as suspicious, preventing them from being written to the disk. internal error 2602 autocad
Select all files and folders in the temporary directory ( Ctrl + A ) and press . Skip any files that Windows claims are currently in use. Empty your Recycle Bin . 4. Run the Installer with Administrative Privileges
If the error persists, the Windows Installer service itself might be "stuck." Open Command Prompt as Admin and run: msiexec /unreg msiexec /regserver to remove those pesky residual files?
: Ensure your .NET Framework is up to date and that you have installed the latest Autodesk Desktop Licensing Service. Understanding the underlying causes of this error allows
The AutoCAD installation files or deployment packages were corrupted during download.
Internal Error 2602 is a system-level conflict that occurs when the AutoCAD installer or the core application fails to access required file paths, database entries, or temporary deployment folders.
The most common fix is to rebuild your deployment from scratch. Which (e
The Autodesk Desktop App or standard web install methods can suffer from packet loss, leading to corrupted setup files. Log into your .
When applied to Autodesk software, this means the installer is attempting to write a file or registry entry that already exists under an identical database key, or the installer database itself has become corrupted. The system experiences a conflict it cannot automatically resolve, resulting in an installation failure. Common Triggers
Browse the list of programs and select (or any related Autodesk component).
typically indicates a failure during the file extraction or registration process of the Windows Installer (MSI)