Free Trial Download and try today

Windows Cannot Find acad.exe

Posted on March 8th, 2024. Last updated on March 8th, 2024.

Problem: When you run the installer for a CAD-based Design Master add-in, or when you try to open a CAD drawing, you get an error similar to the following:

Windows cannot find ‘C:\Program Files\. . .\acad.exe’. Make sure you typed the name correctly, and then try again.

Cause: During installation, there is a “Load menus in AutoCAD or BricsCAD” box that is checked by default. If that box is checked, when the installer completes, it will try to open install.dwg using your Windows default program for opening DWG files.

If you get the error message above, it means your Windows default program for opening DWG files no longer exists on your machine. This can happen when users update their CAD version and uninstall older versions.

Solution: To stop getting this error, change your Windows default program for opening DWG files. See the Change default programs in Windows article in the Microsoft Support knowledge base for more information.

Related Articles

Filter by
Post Page
Installation, Licensing, and Software Management Electrical Customization HVAC Customization Customization AutoCAD Configuration Installation Electrical HVAC
Sort by

Error Copying Database to Backup Location

If a backup of your project files cannot be created, it could be that the file path exceeds the character limit in Windows.


Controlling Ability to Customize Master Schedules

To limit the changes users can make to the master and standards databases, you can set the specific database files to read-only in Windows.


Uninstalling Design Master

You can uninstall the software using the steps outlined here.


Design Master Command Aliases

You can create command aliases for Design Master commands the same way as any other command, by editing the .pgp file.


Unknown Command Error

If your commands don’t work and return an “Unknown command” error, you may need to repair or reinstall AutoCAD.


Master/Standards Database Could Not Be Found

These databases are stored with your customization files; if they can’t be found, your support path may need to be updated.