OneDrive Backup of Individual Files
Go to office.com and on the dashboard go to OneDrive.
In OneDrive click on Sync
You will be prompted to open Microsoft OneDrive
Your email address will be listed. Click sign in and input your credentials.
The new file path for OneDrive will be shown.
The option to backup the Desktop, Documents, and Pictures will be given.
Leave them all selected and click continue.
The setup will walk you through how OneDrive is used. Continue to click Next to finish the setup.