Right-click Start, and then select Control Panel. Under System and Security, click Find and fix problems. Under Hardware and Sound, click Troubleshoot audio playback. Follow the on-screen instructions to complete the troubleshooting process.
M Dell Inspiron 15 7506 suddenly I did not have any sound out put from Laptop speakers, I tried the trouble shooting shows that every thing is good but still no sound.
No Audio Sound out put