If there is no sound when playing music on your computer, you can try the following methods to solve this problem.

1. Check the volume setting: First, make sure that the system's volume setting is not muted or adjusted to the minimum. The volume can be set by clicking the volume icon on the taskbar.

2. Check the speakers: If the volume is set correctly, you can check whether the speakers are working properly. You can determine if the problem is with your computer or speakers by plugging in headphones or other speakers.

3. Check the audio driver: If the speakers are working properly, you can check whether the computer's audio driver has been installed correctly or with the latest version. Audio devices can be found in Device Manager and drivers updated.

4. Check the audio player: If the audio driver has been updated or installed correctly, you can try to use another audio player or change the settings in the current player to solve the problem.

5. Check the line connection: Finally, if none of the above solutions work, you can check whether the audio line connection is correct. For example, check that the audio cable is plugged into the correct output jack.

In short, the problem of no sound when playing music on your computer may be caused by multiple factors and needs to be solved by gradually eliminating the above possible problems.