To backup your files with OneDrive, you'll need to turn on the feature in the "Backup" tab of your OneDrive settings.

Backing up your documents and other files in Windows is always advisable in case the originals ever get lost or corrupted. That's especially true for files that are important, sensitive, or ...

OneNote automatically saves your work through its notebook syncing feature, but Windows PC users can disable and re-enable it at any time.

Microsoft no longer officially supports Windows 10, but you still have an option to get one year of free security updates.