at evening my winxp fine, I run JDownloader to download files and automatic shutdown. Her next morning when watching youtube I can not hear sound from youtube. Likewise with other sites. But strangely, when I play music and movie files offline and the sound could be heard fine. Welcome sound of windows and some other sound when being lost. I've tried all the suggestions are like reinstall sound drivers, checking service, Etc. checks, virus checks, and run windows as well tweaking did not help. On the control panel - sound and audio service-program event sound, I could not hit the play button. Wav file but its weird there. When I checked and played with winamp could be heard.
At the sound part of the Internet option enabled but I also have not helped.
is there any solution besides reinstall windows again? This possible new macro viruses that disable sound. Maybe you could add this in vitur upcoming upgrade.
I thank you for all the help and advice