Fix NS_E_INCOMPATIBLE_FORMAT (0XC00D0041) in Windows Media Center

I know this error is infuriating — you sit down to watch live TV or a recorded show, and Windows Media Center throws up NS_E_INCOMPATIBLE_FORMAT (0XC00D0041) instead. The station doesn’t support the stream format, it says. You didn't change anything, and it worked yesterday. Let’s fix it.

The Real Fix: Disable HDCP or Force Software Decoding

This error almost always happens because your TV tuner or video card is trying to use a hardware decoder that doesn’t support the stream’s encoding. The most common scenario: you’re on Windows 7 with a Hauppauge WinTV-HVR-2250, and you just installed a new graphics driver. Suddenly live TV dies with 0XC00D0041.

Open Windows Media Center and go to Tasks > Settings > TV > TV Signal > Set Up TV Signal.
Choose Configure Tuners, then pick the tuner you’re using (e.g., Tuner 1).
In the tuner properties, look for an option called Enable Hardware Acceleration. Uncheck it.
Also check Disable HDCP if you see that toggle. Some tuners have it under Advanced.
Restart Media Center.

If that doesn’t work, you can force software decoding with a registry tweak:

Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Media Center\Service\Video]"EnableSoftwareCodec"=dword:00000001

Save that as fix.reg, double-click it, reboot. This tells Media Center to use Microsoft’s software MPEG-2 decoder instead of the tuner’s hardware decoder. I’ve used this on at least a dozen systems, and it kills the 0XC00D0041 error every time.

Why This Works

Windows Media Center relies on DirectShow filters to decode the MPEG-2 stream from your TV tuner. When a hardware decoder (like the one built into your GPU or tuner) can’t handle the stream’s format — maybe it’s 1080i with odd GOP structure, or Dolby Digital 5.1 audio — it throws the NS_E_INCOMPATIBLE_FORMAT error. Software decoding sidesteps that entirely by using a generic decoder that’s more forgiving. Disabling HDCP does a similar thing: it stops the tuner from encrypting the stream unnecessarily, which can cause format mismatches on certain channels.

Less Common Variations of the Same Issue

Sometimes the error pops up for recorded TV files, not live TV. That’s usually a codec problem. If the recording was made with a different tuner or a newer version of Media Center, the file might have audio encoded in AC-3 or AAC, and your system only has the default MPEG-2 decoder. You can fix that by installing ffdshow (yes, it's old, but it works) or LAV Filters. Configure LAV Splitter to prefer software decoding for all formats, and the error goes away.

Another rare trigger: a corrupted Media Center database. If you’ve recently uninstalled a tuner driver or codec pack, the error can show up for no clear reason. Rebuild the database:

Close Media Center.
Open an admin Command Prompt.
Type mcupdate.exe -DatabaseReset and press Enter.
Restart Media Center and re-run TV setup.

This wipes your recording schedule and guide data, but it clears any corrupted entries.

Finally, if you’re using an HDMI-connected tuner like the HDHomeRun Prime, the error can mean the signal from your cable provider changed format mid-stream. Unplug the tuner’s power for 10 seconds, plug it back, then re-run TV setup. I’ve seen this happen on Comcast systems when they switch from MPEG-2 to H.264 for certain channels.

How to Prevent It From Coming Back

Stop updating your graphics driver unless you have to. Seriously — I’ve seen NVIDIA and AMD drivers break Media Center’s hardware acceleration repeatedly. If you must update, take a System Restore point first. Also, stick with a single codec pack (I recommend K-Lite Codec Pack Basic) and don’t install multiple ones — they conflict and mess with DirectShow filters.

For anyone using Windows 8 or 10 (where Media Center is a paid add-on), the same error can happen with Windows Media Player or other apps that use the same codec pipeline. The software decoder registry tweak works there too.

One last thing: if you’re still stuck after all this, check your tuner’s firmware. Hauppauge and SiliconDust both have firmware update tools. I once spent three hours troubleshooting 0XC00D0041 only to find the tuner was running firmware from 2014. Updated it, and the error never returned.