delta backup

Delta backup refers to a backup method that only stores changes made since the last full or incremental backup, rather than copying all data each time. In the context of Windows, System Restore Points (SRPs) may function similarly to delta backups, as they capture only the changes to system files and the registry since the previous restore point. This approach saves disk space and speeds up the backup process. However, it also creates dependencies between restore points, meaning that deleting an intermediate point could affect the validity of subsequent points. Understanding delta backup is important for managing system recovery options and ensuring reliable restore capabilities in Windows environments.