known folder backup

Known folder backup is a OneDrive feature on Windows 10 and Windows 11 that automatically syncs your Desktop, Documents, and Pictures folders to the cloud. This built-in capability helps protect important files from local disk failures and makes them accessible across devices. When setting up OneDrive, users can choose to enable known folder backup to create a safety net for critical data. Proper configuration prevents sync confusion and ensures your personal folders are consistently backed up without requiring manual intervention. Understanding how known folder backup works is essential for anyone relying on OneDrive for file protection and cloud access on Windows.