Hello, Kajal Kajal
Welcome to the Microsoft Community.
Hello, it seems that you are experiencing sound problems with your computer.
To help you better, can you describe the specific problem you are having, whether it is the sound of the device outside the computer or the built-in speaker?
You can run the sound Troubleshooter first and search directly in the search bar to see if there is any information you can share here.
At the same time, you can press win+x to select the device manager to open and find your sound card or the driver of the faulty device, and see if there are any errors. You can take a screenshot here, and I will check it for you.
Best regards
Bobhe | Microsoft Community Support Specialist