What is IntelliRestore?
LiteSpeed has a feature 'IntelliRestore' to help restore complete backups.
This feature is enabled by default and is visible in the Restore Wizard on the Backup Files and Backup Content screens. It may be deselected in the Restore Wizard screens. IntelliRestore automatically selects additional backups, in addition to those manually selected to ensure that there is a complete backup set to restore. This feature is useful when restoring transaction logs.
IntelliRestore also assists in determining if the file selected has its complete backup set available. For example, if this feature is enabled and one transaction log was selected restore, it will identify and automatically select the preceding transaction log for differential and full backup for the restore.
If you want to override the IntellRestore selections, manually "unselect" this checkbox.