How to Enable or Disable Alerts in Windows Live Messenger

Solution

1. Click Tools->Options.
   
2. Click Alerts in navigation bar.
   
3. Here you can enable certain alerts by checking the relevant iotions or uncheck one to disable it.
4. If you want to set sounds of these alerts. Just change to Sounds tab. There exists lots of options under many categories.
   
5. Then click apply to finish your setting.