Disabling these messages alone will not totally prevent users from activating the Windows Backup & Restore feature, but it should prevent them from doing so inadvertently. To completely disable the service, see Disabling Windows Backup service above.
1- Click on the Windows Start button, and select Control Panel.
2- From the Control Panel home, click on System and Security
3- Click on Action Center
4- The Action Center window opens. Click on Change Action Center settings
5- In the Maintenance messages section, remove the checkmark from the Windows Backup checkbox.
6- Click OK to save your settings, then close the control panel.
From this point forward, you will no longer see any reminders about the Windows Backup and Restore tool.