Windows Media Player Not Working? Fixes That Work

If Windows Media Player (WMP) won’t open, crashes, or won’t play your files, the fix is usually a quick repair of the app, a codec update, or a check of your file associations. This guide walks you through the most common causes and the exact steps to get WMP playing again on current versions of Windows 10 and Windows 11.

Why Windows Media Player Stops Working

Windows Media Player has been a built-in part of Windows for decades, but it’s no longer the default player on Windows 11. Microsoft now pushes the separate Media Player app (from the Store) and Films & TV for video. That shift causes confusion: people search for “Windows Media Player,” find the old WMP, and then hit problems because it’s not fully supported or because the files they’re trying to play use formats WMP can’t handle without extra codecs.

Common triggers for WMP failures include:

• Corrupted or missing system files after a Windows update.
• Outdated or incompatible codecs for newer audio/video formats (e.g., HEVC, FLAC, MKV).
• Broken file associations – WMP isn’t set as the default player, or the association is misconfigured.
• Third-party software conflicts – other media players or codec packs can interfere.
• Windows Media Player is disabled as an optional feature in Windows.

First: Check If WMP Is Even Installed

On Windows 10, WMP is usually present but may be turned off. On Windows 11, it’s an optional feature that you must enable manually. To check:

1. Open Settings (Win + I) → Apps → Optional features.
2. Click Add a feature (or Add an optional feature).
3. Search for Windows Media Player.
4. If it’s listed, click it and select Install. If it’s already installed, you’ll see it in the list of installed features.

If you don’t see it at all, your Windows edition (like Windows 10 N) may not include it. In that case, you can download the Media Feature Pack from Microsoft’s official site – but note that this is a separate download, and you should only get it from Microsoft’s website.

Repair or Reset Windows Media Player

If WMP is installed but misbehaves, the built-in repair tool often fixes it:

1. Open Settings → Apps → Apps & features.
2. Scroll to Windows Media Player (or search for it).
3. Click the three-dot menu (or the app name) and select Advanced options.
4. Click Repair. If that doesn’t help, click Reset – this clears the library and settings, so you’ll need to re-add your music/video folders.

On Windows 11, the old WMP might not appear in Apps & features because it’s an optional feature. In that case, you can uninstall and reinstall it via the Optional features window: remove it, restart, then add it back.

Fix File Associations and Defaults

If WMP opens but doesn’t play the file you double-click, the file type isn’t associated with WMP. To set it as the default for common formats:

1. Right-click a file (e.g., an MP3 or MP4) → Open with → Choose another app.
2. Select Windows Media Player and check Always use this app.
3. Repeat for other file types (WAV, AVI, WMV, etc.) if needed.

For a bulk fix, go to Settings → Apps → Default apps → Set defaults by app (or search for “default apps”). Click Windows Media Player and then choose which extensions it should handle. Be careful: setting WMP as default for everything might not be what you want if you prefer another player for certain formats.

Codec Issues: Why Some Files Won’t Play

WMP relies on codecs to decode audio and video. Out of the box, it handles common formats like MP3, WMA, WAV, AVI, and WMV. But it does not natively support many modern formats like:

• HEVC (H.265) – used in 4K videos; you may need to buy the HEVC codec from the Microsoft Store.
• MKV – a container format; WMP can often play it if the right codecs are installed, but not always.
• FLAC – lossless audio; WMP supports it in recent versions, but older ones don’t.
• OGG, Opus, VP9 – not supported natively.

Installing a free codec pack like K-Lite (from its official site) can add support for many formats, but codec packs can sometimes cause conflicts. A safer alternative is to use a different player for those files (like VLC or the built-in Movies & TV app) rather than installing extra codecs. If you want to keep WMP, you can also convert the file to a supported format using a free converter.

Run the Windows Media Player Troubleshooter

Windows includes a dedicated troubleshooter for media playback:

1. Open Settings → System → Troubleshoot → Other troubleshooters (Windows 11) or Additional troubleshooters (Windows 10).
2. Find Windows Media Player (or Video Playback).
3. Run it and follow the prompts. It will check for problems like missing drivers or incorrect settings.

This doesn’t fix everything, but it’s a quick, official first step.

When to Switch to a Different Player

If WMP still won’t work after these steps, consider that Microsoft has essentially moved on. The modern Media Player app (available in the Microsoft Store) is the successor – it has a cleaner interface, supports more formats, and is actively maintained. You can download it for free on Windows 10 and 11. Alternatively, VLC Media Player is a popular open-source option that plays almost anything without extra codecs.

Switching doesn’t mean you’re doing something wrong – it’s just the practical choice. WMP is legacy software, and its compatibility with newer media formats will only get worse.

Frequently Asked Questions

Why does Windows Media Player keep crashing when I open it?

Corrupted library files or a damaged installation are the most common causes. Try the Repair/Reset option in Settings (as described above). If that fails, uninstall WMP via Optional Features, restart, then reinstall it.

How do I get Windows Media Player back on Windows 11?

Go to Settings → Apps → Optional features → Add a feature, search for “Windows Media Player,” and install it. If you don’t see it, your Windows edition may lack it – download the Media Feature Pack from Microsoft’s website.

Why won’t Windows Media Player play my MKV or HEVC files?

WMP doesn’t include codecs for these formats. For HEVC, you can buy the official HEVC codec from the Microsoft Store. For MKV, you might need a third-party codec pack, or simply use a different player like VLC or the modern Media Player app.

Can I reinstall Windows Media Player without losing my music library?

Yes. Reinstalling WMP (via Optional Features) doesn’t delete your music files – it only resets the app’s library database. After reinstalling, you’ll need to re-add your folders by going to Library → Manage Libraries.

Is Windows Media Player safe to use in 2025?

It’s safe in the sense that it’s a legitimate Microsoft component, but it’s no longer updated with new features or codecs. Using it for basic MP3 playback is fine, but for modern formats, you’re better off with the newer Media Player app or a third-party player.

Why does WMP say “Windows Media Player cannot play the file”?

That error means the file format isn’t supported or the codec is missing. Check the file extension – if it’s not in WMP’s supported list, you’ll need to convert it or use another player. Also, make sure the file isn’t corrupted by trying to play it in another app.

Related

• Nvidia OpenGL Driver Error: Fixed
• Change Microsoft Account Email: Step-by-Step
• Recover Unsaved Word Documents on iPad: Full Guide