Windows 10: MP3 playing on WMP but encounters an error in other places?

I have audio files, mostly under 30 seconds in length and under 1500 kb in their compressed form. They play fine on WMP player, but when attempting to upload to google drive or a transcription service, I get an error saying the file is empty or corrupted. Any ideas on why that may be occurring and how to fix?

:)

 

torrent mp3 burn onto disc in wmp

i have mp3 music files downloaded through utorrent, os windows 7, and want to burn these to disc via windows media player but the wmp library won't recognise them to add from the library to the burn list, but it will play them ??

 

wmp no sound with certain mp3 audio files or books

I have just upgraded to windows 10 version 1803. I have discovered that when I try to place certain mp3 audio books there is no sound, the progression bar moves along as if the file is being played. When I use VLC or iTunes there is no problem. I had no
problem playing any of these books before the upgrade. I have uninstalled and reinstalled WMP but have got the same result. Any suggestions would be most helpful.

 

Windows Media Player is not in Default apps list in Windows 10

I know, this question was asked many times, but there is still no answer that can actually solve the problem. There are steps to get the WMP in Windows Optional Features, install it if missing, etc. - I did all that, and now WMP runs and plays media files. However, there is no way in Windows 10 to set it as a Default App to play media file types.

• Go to "Default apps" > "Music Player" > "Choose Default" - WMP is not there.
  
• "Choose default apps by file type" > ".mp3" > "Choose a default" - WMP is not there.
  
• "Set Defaults by app" > Windows Media Player is here! > select "Manage" > find ".mp3" > "Choose a default" - the only choice is "Look for an app in the Microsoft Store".
  

After a long time spent searching I found this article: https://www.ghacks.net/2016/02/16/how-to-make-any-program-the-default-on-windows-10/

Apparently after 1803 you are supposed to use hackers tools to set the Microsoft's own Windows Media Player as default. I used FileTypesMan as was suggested in the article, but when I try to change assignments for .mp3 files, I get "Error 5: Access is denied" from the tool. Also, if I right-click on an .mp3 file and select "Open with..." it still suggests me to go to Microsoft Store, open with Notepad, Paint, Word, but not Windows Media Player.

What is the proper way to make WMP the default media player, so it shows up in the Default apps list?