Suddenly I have no sound ...I wonder why?

Windows Media Player cannot play the file because there is a problem with your sound device. There might not be a sound device installed on your computer, it might be in use by another program, or it might not be functioning properly.

Device Manager says Realtek Highh Definituion Audio is working properly. I checked my cable and its plugged-in properly and its turned on, I tried a different speaker and it didn't work. I wonder what's going on. Can someone help me I don't know what to do?

I just purchased this 'Ole' computer. It's a Gateway GT5622 and a JBL M310J subwoofer came with it. The sound system worked great but I have been adding and deleting software. Could the problem be caused by a conflict with another program? There is NVIDA software on this computer that I am not familiare with.

 

I can help you. do you have a NVidia gc with hdmi? sometimes the gcs hdmi out is using the audio cards prosseser to get sound data. and make sure that realtek has found the speakers and make sure your speakers are not damaged. if none of those work then uninstall than reinstall it to make sure it has a good driver.if not your soundcards probably dead. or you might have to reinstall windows. if not Skype me at dawnedwards537 and I will assist you further.