As the default media player for Windows, Windows Media Player, which is short for WMP, is powerful and convenient in playing videos of a variety of formats and makes it easy to play audio, video, images for Windows users. For most cases, you can enjoy the playbacks with superior audio and video quality with the help of Windows Media Player. Therefore, until now, WMP is still one of the most popular media players for Windows users. Though Windows Media Player is very impressive, sometimes you may encounter various problems. For example, you may encounter a situation where the error code c00d11b1 appears while playing files with WMP. The Windows Media Player c00d11b1 error code usually says "Windows Media Player encountered a problem while playing the file." So what causes Windows Media Player error c00d11b1? How to fix error c00d11b1? If you have been bothered by these questions, don't worry. We have already covered these questions and next I will give you several solutions.

Part 1: Possible Cause of c00d11b1

The possible causes of error c00d11b1 may be as below:

  • The recent update leads to the corrupted Windows registry files
  • Delete the files related to Windows Media Player mistakenly or intentionally
  • The installation and downloading of Windows Media Player is incomplete and corrupted
  • The system files are infected by malware or virus
  • The settings of Proxy and UDP is configured incorrectly

Once the error code c00d11b1 appeared, which indicates that your system faces failure in getting any files processed properly or streaming videos from the Internet via Window Media Player. The error code that occurs might cause by kinds of reasons, most importantly, you are able to identify the error source so that you would know how to fix the error and make your Windows Media Player work well again.

Part 2: Turn to Microsoft for official help

For most cases, if you find that something goes wrong with your Windows Media Player, and you don't know what causes and how to fix them, then one of the most direct and convenient ways is to refer to the official website for solutions. Usually, there is a Q&A section on each software website. In the same way, when you encounter Windows Media Player error c00d11b1, you can turn to Microsoft for official help. According to the specific explanations about the error c00d11b1, the solutions can be divided into several parts.

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No. 1: Check the update of Windows Media Player

Sometimes the version of the WMP is out of date which may lead that the files will not be recognized and played smoothly due to some incorrect codecs and unmatched information. You can go to the sound device manufacturer's website to see if an updated driver is available.

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No. 2: Check the status of your sound device.

If there is no sound device on your computer, then the error c00d11b1 may occur. You can search your PC for Device Manager and open "Sound", "video" and "game controllers". If your sound device is listed but there is a red "X" which means the device has been turned off, you only need to enable it. If you can't see any sound devices on the list which means you have not installed any sound devices on your computer. You should install a sound device to make it work smoothly and then try to restart Windows Media Player again.

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Part 3: Other solutions for error code c00d11b1

Besides taking reference to the official website for help, you can find other solutions for error code c00d11b1. When the Windows Media Player error c00d11b1 occurs, it mainly means your system has failed to correctly process a file needed by Windows Media Player to run or stream a video from the Internet. Therefore, you need to check which part is out of order. Then you can try the following methods.

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Method 1: Re-install your Windows Media Player

One of the best ways to eliminate error c00d11b1 is to reinstall WMP which allows you to remove problematic files and replace them with a more fresh functioning set.

Method 2: Clean out Windows registry

The registry is a complex module on Windows which can guarantee your computer runs smoothly. But on the other hand, the incorrect registry will be an obstacle for WMP to play files. Here, you can use a third-party program Auslogics Registry Cleaner to help you clean the registry on your computer. After cleaning, you can find your operating system is running faster.

Method 3.Disable any UDP settings for Windows Media Player

Sometimes, User Datagram Protocol (UDP) package may prevent WMP from running correctly. You can click the main menu of WMP to go to the "Tools" option and check whether the UDP box is ticked or not. Just disable the option and restart WMP, and the error c00d11b1 will be eliminated.

Method 4. Make sure Proxy settings of Windows Media Player are set correctly

If Proxy Settings are not correct, it may cause your Windows Media Player to work abnormally. But you can set them properly to ensure the connection built by Window Media Player to the program is in a proper way. You can refer to the steps as follows:

1. Find the proper proxy settings from Microsoft website.
2.Hit on the “Start” icon button.
3.Choose Control Panel in the menu, then hit on “Tools”.
4.Confirm whether the internet connection and player are matchable with the information from Microsoft website.
5.Configure the values if they are not matchable.

Method 5. Update computer drivers

If the error appeared when you are playing DVD on Window Media Player, this is probably caused by the problem of corrupted or obsolete drivers. But, you can update the device driver to fix this issue. You should note that looking for a compatible driver for your device will cost lots of time. You may need to find and download the proper driver from the manufacturer or Microsoft website. If it is found that an incompatible driver is being used, more problem might be caused to your computer. Therefore, you can make the whole process become easier by using Auslogics Driver Updater, the driver can be updated to the latest version with a simple click.

Method 6. Remove recent update with Windows System Restore

In some instances, the error C00D11B1 may be caused by the recent changes or updates. You can use Window System Restore to make the settings return to the previous status before problem showed up. There is no worry about whether the images, files or other data get lost. It wouldn’t be any affect by the System Restore. You can follow the guidance as below:

1. Hit on “Start” button.
2.Enter “system restore” into the search bar, then hit on “Enter” button.
3.Choose System Restore in the searching results.
4.Once a prompt pops up, get the administrator passwords submitted.
5.Follow the steps from the Wizard and select the restore option, which would make the settings of the computer return to the previous status before the error issue came up.

Part 4: Use alternative for Windows Media Player

Additionally, I believe the most convenient way to get away with the Windows Media Player error c00d11b1 is to use an alternative for WMP. Here Leawo Blu-ray Player will be strongly recommended. As a 100% free and 6-in-1 media player software, Leawo Blu-ray Player contains all media playback solutions you need for your leisure entertainment, including 4K, Blu-ray, DVD, CD, HD (4K), MPEG, WMV and so on. With advanced image and audio processing technology, Leawo Blu-ray Player provides you extraordinary movie playback and cinema-like experience. It is totally independent media player and it will not be affected to a large extent by the settings on your computer.

Step 1. Download and install Leawo Blu-ray Player.

Step 2.Enter the main interface and insert the file you would like to play to it by clicking "Open Files" button on the main interface. Or you can simply drag the file to the main panel. And then you can enjoy the file on Leawo Blu-ray Player.

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Step 3. Set more player parameters. In order to obtain the customized watching experience, you can have more player settings. You only need to click on the drop-down menu panel on the top right which includes Playback, File Associations, Audio Output, DVD Blu-ray etc.

leawo-blu-ray-player

Conclusion

As a piece of classical media player, Windows Media Player is still attractive to many Windows users. Even though you may encounter error c00d11b1, now you can easily eliminate it by referring to the above information. Or I strongly suggest you to have a try on Leawo Blu-ray Player which will give you the best digital playback experience.