I do not know when this began, but all .mp4 video files will not play. The media player launches, but then the following WMP error appears:
Windows Media Player cannot play the file. The Player might not support the file type or might not support the codec that was used to compress the file.
I have found that simply changing the file type to .avi allows me to play the video. Online help suggested downloading codecs, but this had no effect. I know for sure this was not always the case; .mp4 videos used to always play.
Running Windows 7 X 64
Thanks for any suggestions.
Edited by vev46, 06 April 2017 - 09:01 AM.