[Fixed] This Item Was Encoded in a Format That’s Not Supported (100% Working)

Some of you might have come across error code 0xc00d5212 while trying to play AVI video in Windows Media Player. It has a statement like “This Item Was Encoded in a Format That’s Not Supported”. But some straightforward fixes should help you solve the issue. 

This Item Was Encoded in a Format That’s Not Supported

What is the Error Code 0xc00d5212?

This error code comes with the message “This Item Was Encoded in a Format That’s Not Supported”. It shows up when you are trying to open a video file .MKV or. MOV, AVI extension on your Windows Media Player

Why Does the Error Code Occur?

There can be a lot of reasons the error code occurs. Most are related to the corrupted codec of the media file. That’s why the media player can’t play the video. Old display adapters might be incompatible to play the file format. 

There can even be a malware attract that corrupted the video file to show such an error message. Corrupt entries in the windows 10 file system can also lead to such issues. 

Methods of Fixing the Error Code 0xc00d5212

Solution 1: Update Graphics Card Drivers

Press the Windows key & type “device manager”. Open the Device Manager then right-click on display adapters. You will find the option to “Update Driver Software”, click on it. 

You will find a window with two options for updating the driver. Click on “Select automatically for updated driver software.”. Select the required driver & wait till the princess finishes. Then you need to restart your computer to see if the issue has been solved. Proceed to the next solution if not. 

Solution 2: Uninstall Multiple Audio Codecs

Again press the windows key & open up “device manager” like the previous solution. Now double click on “Sound, video, and game controllers”. Now right click on the third-party audio device & choose to uninstall the device. When the process is done, see if the error message still shows or not. 

Solution 3: Convert Media File Format

As said before, the following error message can be due to an unsupported file format. That’s why you need to convert the file format to some other format such as .MP4. Your problem might be solved through this. 

Solution 4: Installing Missing Codec

You can try to see if the missing codec for the file is available on Microsoft’s website. You have to download & install the codec to update your windows media player. After that, you should be able to play the video without any problem. 

Solution 5: Performing System Restore

Sometimes a simple system restoration can be the solution to the problem. At first log in to your computer as an administrator. Now click on the windows key & type “system restore”. Press Enter to select “Create a restore point”.

Now go to the system protection tab & click on “system restore”. Click next & then select the restore point. After confirming the disk to restore proceed to the next. Then finish after confirming your restore point. 

Solution 6: Open Media File in Another Media Player

Sometimes the best solution is to try an alternative method. Try another 3rd party media player like VLC or POT or KM player to open the media. Right-click the affected media file & select open with the installed media player app. This should work properly if not the media is heavily corrupted. 

Frequently Asked Questions (FAQs)

Can’t play because the item’s file format isn’t supported 0xc00d3e8c?

0xc00d3e8c is usually due to the media player not able to play file type.MKV. it can occur when your media player doesn’t sync with the file format. 


Hopefully one of these methods will help you eliminate the issue. But if it doesn’t help to open the file in the windows media player, then there might be several corruption issues. It’s best to just play it in another media player or try to repair the file through an expert. 

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