Do you see this Windows Storage error message on your screen?
"Unable to open backed-up files"
Then please follow the steps below to solve that Storage problem.
This is a storage error. It may present itself if you are attempting to retrieve files from a backup device. You will be unable to retrieve the files, and the system will show the error code. This error occurs on a Mac, usually when using Time Machine.
The backups that are held on Time Machine are used for backup only, they can be viewed and browsed, but not directly used. You must restore them first.
TipFor more information, please see: How to fix Storage error #10657