Windows Media Player is Microsoft's free, built-in player for Windows 11 and 10 that plays your music and video and organizes your library, with newer formats like HEVC and AV1 a quick codec add-on away.
It handles audio and video playback, organizes your library, and syncs with portable devices - the familiar set of jobs it has done across Windows versions for two decades.
The catch in 2026 is that Windows actually ships two players with nearly identical names, and knowing which one you have decides what works and what does not.
What Windows Media Player Actually Does - in Plain Terms
At its core it is a playback-and-library tool. You point it at your music and video folders, and it builds a browsable collection you can sort, search, and turn into playlists.
It plays the common formats out of the box and pushes content to phones and players that still support that workflow.
The interface stays deliberately simple, with a stripped-down "Now Playing" view when you just want the controls and nothing else on screen.
For broader format support, it leans on the same codec infrastructure as the rest of Windows.
A "codec" is just the small piece of software that knows how to decode a particular kind of file, so if a video refuses to play, the fix is usually a missing codec rather than a broken player.
That is where a maintained pack like K-Lite Codec Pack or LAV Filters fills the gaps, adding the decoders Windows does not include natively. You can browse the full set on the codec packs page.
The Two-Player Situation You Need to Understand First
Windows 11 includes a modern Media Player app and a separate feature called Windows Media Player Legacy, and they are treated as completely different applications.
The modern app - the one this page covers, carrying the date-style version numbering like 11.2605.14.0 - is the actively updated player delivered through the Microsoft Store.
Windows Media Player Legacy is the classic desktop player many people remember from Windows 7 and Windows 10, kept around as an optional feature for older workflows.
This matters because the two differ in real ways. If you burn audio CDs for an older car stereo, or you rely on classic skins and advanced tag editing, the Legacy player still does jobs the modern app dropped.
For everyday playback, the modern app is the better-maintained choice and the one that keeps getting security updates. Neither costs anything - both are free and built into Windows - so the only real decision is which feature set you want turned on.
Who Windows Media Player Is For - and Who Should Look Elsewhere
It is the right pick if you want a no-install, no-cost player that is already on your PC and does the basics reliably.
If your needs run further - playing obscure or half-broken files without hunting for codecs, fine-grained subtitle control, or a player that handles practically anything you throw at it - a dedicated alternative is the smarter route.
VLC Media Player plays nearly every format with its codecs built in, KMPlayer bundles its own decoders for versatile out-of-the-box playback, and both Media Player Classic and Daum PotPlayer are lightweight favorites for people who want more control than the built-in app gives.
If you are choosing a player mainly for 4K clips, our guide to the best players for HEVC files compares the options.
Users on legacy RealMedia files are better served by Real Alternative, and QuickTime .mov content plays cleanly through QuickTime Alternative.
Playing HEVC, AV1, and Dolby Vision Files
Out of the box, Windows Media Player does not decode the newer high-efficiency formats, so a 4K HEVC clip or an AV1 video may show audio with no picture, or refuse to open. HEVC (also called H.265) and AV1 are simply newer, more space-efficient video formats, and the fix is installing the matching extension.
For H.265 footage you need the HEVC Video Extension, and our step-by-step guide shows how to get it at no cost. AV1 content requires the AV1 Video Extension.
DTS audio tracks need DTS Sound Unbound, which carries the licensed DTS decoder, and WebM playback (VP8, VP9, AV1) can be enabled with the WebM DirectShow Filters.
To play Dolby Vision content, the corresponding extension is required as well. If you would rather not chase down extensions one by one, installing LAV Filters or a full codec pack covers most modern formats in a single step. You can read up on the formats themselves on our video codecs page.
Before You Install: Compatibility and Format Support
The modern Media Player runs on Windows 11 and is available on Windows 10, delivered and updated through the Microsoft Store rather than as a standalone setup file.
Out of the box it handles the everyday audio formats - MP3, AAC, M4A, WAV, WMA, FLAC, AC-3, AMR, and the Ogg family (Vorbis, Opus, FLAC) - plus Matroska audio.
On the video side it covers MP4 and M4V (including H.264, and H.265 and AV1 with the right extensions), MOV, ASF, AVI, WMV, MKV, M2TS, WebM, and Theora in OGV.
Anything outside that list is the cue to add a codec pack rather than switch players.
Get Windows Media Player 11.2605.14.0 Free for Windows 11 and 10
Windows Media Player is free, and you can download Windows Media Player from CODECS.COM with the confidence of a virus-checked, trusted source.
Once it is running, pair it with the extensions or a codec pack above and it will handle the overwhelming majority of files you are likely to open on a Windows PC.
Editor's Answer: It works only with Windows 11.

I think youre talking about Windows Media Player Legacy, which is indeed at version 12.
I'm currently running Windows Media Player 11.2409.11.0 on Windows 11 Pro 23H2, and it works fine.
Please also check the last image from Screenshots page:
https://www.free-codecs.com/windows_media_player_screenshots.htm