Backup and roll back
The backup and roll back feature is only intended for restoring your system to an earlier working copy. You should only roll back if you encounter problems after applying changes. If you simply want to unblock the websites, remove or uncheck them in the main window. Do not roll back to unblock the websites.
Backups are created automatically each time you apply changes. You do not have to do anything to backup your system. To limit the number of backups and view backups that has been created, click the Roll back button on the main window.
Click the Roll back button on the main window. Select a backup based on its time of creation, and click the Roll back button to perform the operation.