Share this article

Improve this guide

Mfc140u.dll Not Found: How to Fix or Download It Again

Often, missing DLL files indicates virus attacks

5 min. read

Updated onApril 2, 2024

updated onApril 2, 2024

Share this article

Improve this guide

Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more

Key notes

For fixing DLL errors, we recommend Fortect:

Fortect will search for an intitial version of your missing, corrupted or damaged DLL files that cause problems to your Windows OS and will replace it. Here is how to find them in 3 easy steps:

Many of our readers report an error sayingThe program can’t start because MFC140U.DLL is missingfrom their computers when opening an app. It occurs when the needed DLL file can’t be accessed for some reason. However, we’ll show you how to fix the error as we go further into the article.

Aside from the mfc140u.dll not found error, there are otherDLL file missing errorsyou can run into on Windows 11.

Why is mfc140u.all not found?

If a mfc140u.dll file required for running a program is missing from your PC, you won’t be able to run it which results in an error message. Some factors that can cause this are:

Fortunately, there are some troubleshooting steps to resolve the error and get your apps running again.

What can I do if mfc140u.dll is not found?

Before trying any advanced troubleshooting steps, go through the following:

Proceed with the solutions below if you can’t fix the mfc140u.dll missing error:

1. Download and replace the Mfc140u.dll file

Downloading a new copy of the mfc140u.dll file will replace the missing copy, and it should fix the mfc140u.dll not found error.

If you’re concerned about getting different issues and errors by performing this action manually, we recommend you try aspecialized program capable of an in-depth repair process.

2. Register the mfc140u.dll file

Registering the mfc140u.dll file will revalidate the file and fix the error on your computer. It helps the system rewrite the file, making it visible to the needed services.

3. Run a System File Checker (SFC) scan

Running a System File Checker scan will find andrepair corrupt filescausing the LibusbO.dll file to be inaccessible to the application.

Check our article about what to do ifnothing happens when you select run as administratoron Windows 11.

4. Run Windows Defender’s real-time protection

Real-time protection will find viruses and threats liable to impede the DLL file and annihilate them.

5. Run a System Restore

The System Restore may uninstall some recently installed programs, and it only affects the most recent errors. Readhow to fix Restore Point if it’s not workingon your PC.

Furthermore, you may be interested in our guide on thebest DLL repair toolto download on your PC. Also, we have a detailed guide on theAutorun.dll error on Windows 10/11and some ways to fix it.

Should you have further questions or suggestions, kindly drop them in the comments section.

Mfc140u.dll Not Found: How to Fix or Download It Again#

Why is mfc140u.all not found?#

What can I do if mfc140u.dll is not found?#

1. Download and replace the Mfc140u.dll file#

2. Register the mfc140u.dll file#

3. Run a System File Checker (SFC) scan#

4. Run Windows Defender’s real-time protection#

5. Run a System Restore#