The AV1 code error is an error that causes the inability to play audio or video encoded with AV1. The manifestation of the error is a message displaying “This item was encoded in a format that’s not supported missing codec 0xc00d5212” error. So how to fix AV1 code error on Windows? Let’s find out in the article below!
Table of Contents
What is codec 0xc00d5212?

When you play an audio or video clip in AV1 format if the screen displays the error “This item was encoded in a format that’s not supported – 0xc00d5212“, your computer has an AV1 code error. If you still want to listen to audio in this format, you need to fix the error.
How to fix missing codec 0xc00d5212 Windows 10
Step 1. Go to Microsoft’s AV1 codec support page and click the Get button.

Step 2. There will be a pop-up message that appears, click Open Microsoft Store.

Step 3. In the Microsoft Store app, click the Get button.

As soon as you click the button, the store will download the AV1 codec and install it automatically.
Step 4. Now close the Microsoft Store and restart Windows.
You have already installed the AV1 codec in Windows 10. To verify if the codec is working properly, download the video with the AV1 codec encoded and try playing it using the Movies & TV app. If the application plays the video, you have successfully installed the AV1 codec.
Note: Some third-party media players like VLC do support AV1 codec integration.
See more: How to Fix This device cannot start. (Code 10)
Conclusion
So you already know how to fix the missing codec 0xc00d5212 Windows 10 as above, right? Do you have success with the above tips or if you still have any other problems while doing so, don’t forget to share with us in the comments below!