Windows Backup is a built-in feature in the Windows operating system that allows users to create copies of their files and system settings. This tool helps protect important data from loss due to hardware failure, accidental deletion, or malware attacks. Users can schedule regular backups to ensure their data is consistently saved. The backup process can include personal files, folders, and even system images, which capture the entire state of the computer. Users can choose to store backups on external drives, network locations, or cloud services, providing flexibility in data protection strategies.