[FFmpeg-user] trouble shooting defective FFmpeg install on Windows 10?

[Spencer Graves]

Hello:


       What would you suggest I do to troubleshoot a defective install 
of FFmpeg for Audacity on Windows 10?


       A colleague installed FFmpeg for Audacity 2.2.2 on a Windows 10 
computer.  Edit > Preferences > Libraries > "FFmpeg Library:" = 
"C:\Program Files (x86)\FFmpeg for Audacity\avformat-55.dll".


       When we did File > Open (or Import) > [a *.MOV file], we got a 
message saying FFmpeg for Audacity was required.  But we have it.


       I'm not sure, but I believe we installed it following the 
instructions on 
"https://manual.audacityteam.org/man/installing_and_updating_audacity_on_windows.html#winff". 



       Thanks,
       Spencer Graves
p.s.  A week ago I installed FFmpeg for Audacity successfully for 
computers running Windows 7 and 10 and for macOS 10.14.6.  Now I try 
what I think was the same procedure on a friend's Windows 10, and it fails.