How to Fix mfc140u.dll Missing Error on Windows Computer

Missing .dll files are some of the most common problems people come across on Windows operating systems. They are also some of the most annoying to solve as they rarely give you any decent information to figure out exactly what is wrong. Usually it's missing Visual C++ components but there may be some other causes so follow along as this guide shows you how to fix "mfc140u.dll was not found" using safe and reliable methods.

Programs and Software Affected by Missing DLL Files?

Missing DLL files like mfc140u.dll can affect a wide range of programs, apps, and games. This includes productivity software, creative tools, and professional applications. All Adobe software such as Photoshop, Premiere Pro, After Effects, and Illustrator can fail to start if required Visual C++ DLL files are missing. Video editing software like DaVinci Resolve is also commonly affected, along with 3D tools, engineering software, launchers, and many PC games.

Because these DLL files are shared system components, a single missing file can impact multiple unrelated programs at the same time.

How to Fix mfc140u.dll Missing Error on Windows Computer

• Open Settings and go to Windows Update.
• Click Check for updates and install all available updates.
• Restart your computer afterward.

This has a 50/50 chance of solving this problem. If it does you can move on from this guide. If it doesn't, follow the steps below.

Repair System Using SFC and DISM

Use the built in System File Checker and DISM tools to scan and repair system files. This one works really well for missing .dll files.

• Open Command Prompt as administrator and run:

• After it finishes, run:

• Restart your PC once both scans complete.

Note: If there are any error messages run both scans again in Safe Mode and see if the problem goes away.

Reinstall the Affected Program

Uninstall and reinstall the program that triggers the error. Sometimes the program will have the missing files included in it's installation. This is the quickest and easiest way to solve this problem but won't work for programs that expect the dll files to already be on the system. Which is annoyingly most software including Adobe software.

Repair or Reinstall Microsoft Visual C++ Redistributables

• Open Settings and go to Apps then Installed apps.
• Locate all Microsoft Visual C++ Redistributable entries.
• Click the menu next to each one, choose Modify, then select Repair.

If repairing using this method does not work, uninstall all Visual C++ Redistributables, restart your computer, then download and reinstall the latest supported versions from Microsoft. Alternatively, you can try using this bulk installer instead.

Restore or Reset Your PC

If none of the fixes work, use System Restore to roll Windows back to a point before the error appeared. If no restore points exist or the issue persists, reset Windows while keeping your personal files. Always back up important data before performing a reset.