To cancel the system message notification in the lower right corner of the computer, just use the following steps (take Win7 as an example).
1. The mouse pops up a right-click menu in the blank space of the taskbar.
2. Select the "Properties" option in the menu and click the left mouse button to pop up the "Taskbar and Start Menu Properties" window.
3. Click the Customize button in the Notification Area column of the Taskbar page to open the Notification Area Icon window.
4. Click "Always show icons and notifications on the taskbar" in the red box below to remove the previous check, and then set the option behind all the above applications to "Hide icons and notifications".
5. Click the "Open or Close System Icon" button below to open the ""window.
6. Set the behavior options corresponding to all system icons to "Close", and then click "OK" to return to the "Notification Area Icons" window.
7. Click the "OK" button in the "Notification Area Icon" window to complete the setting and close the window. At this point, the system message notification area of the taskbar.
At this point, canceling the system message notification in the lower right corner of the computer is complete.