Internal Error 2602 Autocad !!link!! -

AutoCAD, AutoCAD LT, Civil 3D, and vertical products (2020–2025)

When Internal Error 2602 occurs in AutoCAD, you may experience one or more of the following symptoms:

Many 2602 errors stem from a corrupted initial download, especially when using the "Install Now" or "Download Now" options in the Autodesk Account portal. Log into your . internal error 2602 autocad

Important: Re-enable your antivirus immediately after the installation completes. 5. Re-register the Windows Installer Engine

Navigate to the following directories and delete any folders named or AutoCAD : C:\Program Files\Autodesk C:\Program Files (x86)\Autodesk AutoCAD, AutoCAD LT, Civil 3D, and vertical products

C:\ProgramData\Autodesk (Note: ProgramData is a hidden folder. You may need to enable "Hidden items" in the File Explorer View tab). C:\Users\%USERNAME%\AppData\Local\Autodesk C:\Users\%USERNAME%\AppData\Roaming\Autodesk 4. Temporarily Disable Antivirus and Windows Defender

To prevent Error 2602 from returning:

This error often indicates a failure in the Microsoft Installer (MSI) process. Common triggers include:

Right-click the AutoCAD desktop icon, select Properties , go to the Compatibility tab, check Run this program as an administrator , and click Apply . Method 3: Re-register the Windows Installer Engine Temporarily Disable Antivirus and Windows Defender

Select your AutoCAD version and click or Modify .

Follow the on-screen prompts to check if the error is bypassed. 3. Temporarily Disable Antivirus and Windows Defender