Not too sure that this will help, but if you have multiple programs / windows open and producing "Sounds", maybe try......
Right clicking the speaker icon in the notification area (down on the right near the clock) and choose "Open volume mixer".
This should provide you with the ability to mute individual items.
Want to reply to this thread or ask your own question?
You'll need to choose a username for the site, which only take a couple of moments. After that, you can post your question and our members will help you out.