Attempting to launch ArcMap fails with the following error message returned:
Error: The code execution cannot proceed because mfc140u.dll was not found. Reinstalling the program may fix this problem.
The mfc140u.dll file is corrupt or missing due to improper installation.
Use one of the following methods to resolve this issue:
Uninstall ArcMap and reinstall it
Install the latest Visual C++ Redistributable
Download and install the latest Visual C++ Redistributable from Microsoft. Restart the machine once the installation is complete.