Go back to Settings > Update & Security > Backup and click More options again. Scroll down to the bottom of the File History window and click the Restore files from a current backup link. Windows displays all the folders that have been backed up by File History.
How do I restore files from an external hard drive on Windows 10?
Plug your external hard drive into your computer. Click Start, type backup, then click the Backup and Restore link that appears, then click on the Restore my files button. To restore a specific file, click on Browse for files, then search the folders to find the file. Highlight it, then click Add files.