Other applications that use Media Foundation are practically all 64-bits, which means they will have Media Foundation available as normal. If you use a 64-bit version of Windows, then we recommend to use the 32-bit version of WMP (which is actually also the default one in Windows) and only disable Media Foundation for 32-bit. So please only disable Media Foundation if really needed. Some web browsers, such as Firefox and Internet Explorer, also need it.

But also many modern games use Media Foundation for playback of intros and cutscenes. For example Windows Store apps from Microsoft on Windows 8 and 10. The recommended way to bypass Media Foundation is to rename your file to an extension for which Media Foundation isn't used.Īlternatively, you can forcefully disable Media Foundation with the Codec Tweak Tool.ĭisabling Media Foundation can break playback of the relevant file formats in applications that are only capable of using Media Foundation. Then it will use the decoders and subtitle filter from the codec pack. WMP will automatically switch from Media Foundation to DirectShow in that case.įor the other file formats mentioned above you need to bypass Media Foundation so that WMP uses DirectShow codecs instead. In case of AVI files, subtitles will be displayed if DirectVobSub (a.k.a. Media Foundation is used for several common file types such as: AVI, WMV, MP4, MOV, 3GP, and M2TS. Media Foundation lacks native support for many common subtitle formats. As a result, DirectShow subtitle filters like DirectVobSub are not used. Since Windows 7, both Windows Media Player and Media Center make use of the Media Foundation framework instead of DirectShow for playing certain file types. Please read the warning below before disabling Media Foundation! mp4Ĭodec Tweak Tool > Media Foundation > Disable for. Subtitles are not displayed in Windows Media Player on Windows 7 / 8 / 10

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