If you are getting a missing Mfc120u.dll or MSVCP120.dll error, then this is a missing file related to your systems Visual C++ Runtime files.

To resolve the problem, please first run "Windows Update" to ensure that your system has all the latest system updates from Microsoft.

If this doesn't resolve the issue, please try download and install Visual C++ 2013 from the link below.

Visual C++ Redistributable Packages for Visual Studio 2013: -
http://www.microsoft.com/en-us/download/details.aspx?id=40784

For 64-bit version of Windows, make sure to install both files: "vcredist_x86.exe" and "vcredist_x64.exe".
Whereas for 32-bit version of Windows, only install the "vcredist_x86.exe".

More info on Win 11 system: https://answers.microsoft.com/en-us/windows/forum/all/vcruntime140dll-and-msvcp140dll-missing-in-windows/caf454d1-49f4-4d2b-b74a-c83fb7c38625