FIX: Windows Media Player cannot open WAV/MP3/MP4/AVI/MKV files

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Windows Media Player cannot open audio and video files

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Although Windows Media Player is becoming increasingly outdated, quite a few users still utilize it for playing videos and audio. However, the reality struck when users see that Windows Media Player cannot open WAV, MP3, MP4, AVI, MPG, MKV, and MOV videos and music for some users even though the software supports those file formats.

Why can’t I play video/audio files on Windows Media Player?

1. Open the Video Playback Troubleshooter

  1. First, check out Windows 10’s Video Playback troubleshooter, which might come in handy for fixing Windows Media Player’s video playback. Open Windows 10’s search utility with the Windows key + S hotkey.
  2. Input ‘troubleshoot’ as the search keyword, and select Troubleshoot settings to open Settings as shown directly below.The Troubleshoot window windows media player cannot open WAV/MP3/MP4/AVI/MKV/MPG/MOV files
  3. Select Video Playback and click Run the troubleshooter to open its window below.Video Playback window windows media player cannot open WAV/MP3/MP4/AVI/MKV/MPG/MOV files
  4. Users can then select three alternative troubleshooting options. As the first two options seemingly do not exactly pertain to Windows Media Player not playing video files, click I want to continue with this troubleshooter to initiate it.

2. Install the K-Lite Codec Pack

Windows Media Player still needs a K-Lite Codec pack to ensure it plays even all of its supported file formats ok. To install K-Lite, click Mirror 1 or Mirror 2 on the Download K-Lite Codec Mega page. After downloading it, click K-Lite_Codec to open the pack’s installer. Then users can go through the setup wizard to install the codec.

K-Lite Codec Pack page windows media player cannot open WAV/MP3/MP4/AVI/MKV/MPG/MOV files


3. Fix Corrupted Video Files

  1. Digital Video Repair is a freeware software that can repair corrupted AVI, MOV, and MP4 videos. To fix videos with that utility, click Download on the DVR page to save the installer for that software.
  2. Then open the software’s installer to add DVR to Windows.
  3. Launch Digital Video Repair to open the window shown directly below.the Digital Video Repair window windows media player cannot open WAV/MP3/MP4/AVI/MKV/MPG/MOV files
  4. Click the Input file button to select a video file to repair.
  5. Press the Check & repair button.

As we said in the introduction, Windows Media Player is outdated. Use these tools to play videos and never look back.


4. Reinstall Windows Media Player

  1. Reinstalling Windows Media Player might resolve playback issues for both video and music. To reinstall WMP, open the Run accessory by pressing the Windows key + R hotkey.
  2. Then users can open the uninstaller window by entering ‘appwiz.cpl’ in Run and clicking OK.Programs and Features window windows media player cannot open WAV/MP3/MP4/AVI/MKV/MPG/MOV files
  3. Next, click Turn Windows features on or off to open the window shown directly below.Windows Features window windows media player cannot open WAV/MP3/MP4/AVI/MKV/MPG/MOV files
  4. Double-click Media Features to expand it.
  5. Deselect the Windows Media Player checkbox.
  6. Click OK to uninstall WMP.
  7. Restart Windows after uninstalling the media player.
  8. Open the Windows Features window again.
  9. Then select the Windows Media Player checkbox.
  10. Click OK to reinstall the software.

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