You can stop the service for the Master Browser, reboot and that should resolve the issue.
Control Panel-Administrative Tools-Services. Locate and double click Computer Browser. In the new window you will see "Startup Type". If this is set to Automatic, set it to either Manual or Disabled.
It's explained in detail here as well. http://www.hightechdad.com/2007/05/09/how-to-fix-master-browser-mrxsmb-event-id-8003-errors/
Control Panel-Administrative Tools-Services. Locate and double click Computer Browser. In the new window you will see "Startup Type". If this is set to Automatic, set it to either Manual or Disabled.
It's explained in detail here as well.
http://www.hightechdad.com/2007/05/09/how-to-fix-master-browser-mrxsmb-event-id-8003-errors/