@Khushboo Kumari, Thanks for posting in Q&A.
For the Windows camera app error code 0xa00f4244. Based on my researching, this error happens because the application for your camera was not installed correctly. And the system was unable to identify its presence. Alternatively, it’s possible that the camera is being blocked by your antivirus program.
To fix the issue, you can try the following methods:
- Check camera drivers
- Make sure you turn on the Camera app
- Check Your Antivirus Program to see if it blocks the camera.
- Run the Store Apps Troubleshooter to see if there's any issue with your camera app.
We can see more details in the following link:
Note: non-Microsoft link, just for the reference.
Hope the above information can help. If there's any update, feel free to let us know.
If the answer is helpful, please click "Accept Answer" and kindly upvote it. If you have extra questions about this answer, please click "Comment".
Note: Please follow the steps in our documentation to enable e-mail notifications if you want to receive the related email notification for this thread.