Video runs slow: Turn on hardware acceleration, close other programs running in the background, and update your graphics card drivers.
Can’t open HEVC videos in video editing software: Change the video format to H.264 using free tools like HandBrake or FFmpeg, or check if your software supports HEVC.
Black screen when playing video: Update your graphics drivers, check your monitor settings, and try turning hardware acceleration on or off.
No sound when playing video: Make sure the video actually has sound, update your audio drivers, and test the video in VLC player.
Codec is missing error: Reinstall the extension and remove other codec packs.
App crashes when playing video: Reset or reinstall the app, update Windows, and run the system file checker (sfc /scannow).
Video not playing: Try uninstalling and installing the extension again, restarting your computer, and making sure the video is saved in H.265 format.
Can’t install the extension: Check your internet, make sure your web browser is working, and restart your device.
Can’t find extension on the website: Use the download link available on our website, which is in the form of a download button.
HEVC video plays in VLC but not in Movies & TV app: Reinstall the extension and update the Movies & TV app from the Microsoft Store.
Video uses too much CPU and runs slow: Check if your computer can handle HEVC videos, turn on GPU acceleration, and avoid playing very large 4K videos on old computers.
4K or big videos buffer a lot: Make sure your device supports 4K, lower the video quality, or use VLC player, which handles buffering well.
HEVC video won’t open in Windows Media Player: Try VLC player, install the extension and use the media player.
Video looks faded: Adjust your screen settings, turn off HDR if your screen doesn’t support it, and update your display drivers.