By default, network warning and network connectivity messages display in balloon tips in the notification area, at the far right end of the taskbar. In addition, if you are using a Microsoft Exchange Server e-mail account, messages from the Exchange server will also display in the balloon tips.
To stop viewing some or all of these types of messages:
To resume seeing the messages, on the shortcut menu, click the type of messages again.
Note When you hide messages, they are not displayed in a message box. The hidden messages are written into the Application section of the Microsoft Windows Event Log and can be viewed there. To see the Event Log, in Control Panel, double-click Administrative Tools, and then double click Event Viewer. For more information, see Windows Help.