About mfc40.dll errors

When an application requires mfc40.dll, Windows will check the application and system folders for this .dll file. If the file is missing you may receive an error and the application may not function properly. Learn how to re-install mfc40.dll.

.DLL Error Example

• This application has failed to start because mfc40.dll was not found. Re-installing the application may fix this problem.
• mfc40.dll Not Found.

Possible fixes for mfc40.dll errors

To fix .dll errors, you can try a few basic steps. While some errors might need more detailed fixes, these initial steps often solve common problems.

• Re-Install the application that requires mfc40.dll.
• Update the application to the latest version.
• Install all Windows updates and any available driver updates.
• Download and install mfc40.dll.
• View our guide: How to fix .dll errors.

• Did you know? You may already have this file even though you are getting .dll errors. That's because the .dll file may have been moved or renamed by another application. Check to see if you already have mfc40.dll on your computer. For more information see how to search your PC for .dll files.

How to register mfc40.dll

Download mfc40.dll

Select the .dll version to download. In most cases, this would be the latest version (32/64-bit) from the appropriate company.