Stopping the Messenger Service
To remove the ability for anyone in the world to pop up messages on your
computer, you can disable the Messenger service. To do so:
- Click Start > Settings > Control Panel
- Click Performance and Maintenance
- Click Administrative Tools
- Double click Services
- Scroll down and highlight "Messenger"
- Right-click the highlighted line and choose Properties
- Click the STOP button
- Select Disable or Manual in the Startup Type scroll bar Click
OK