N-able Backup: OneDrive folder backup completes with error: "The file cannot be accessed by the system" or "Access to the cloud file is denied"

Last Modified

Thu Dec 31 13:34 GMT 2020

Description

  • OneDrive folder backup completes with one of these errors:
    • "The file cannot be accessed by the system."
    • "Access to the cloud file is denied."

Environment

  • N-able Backup

Solution

  • This error occurs due to files being available online-only within OneDrive.
  • By design, Backup Manager only backs up files local to device.
  • If files are not local to the device, Backup Manager will not be able to back them up.
  • Make OneDrive data available offline:
    1. Right-click OneDrive icon in System Tray.
    2. Click three dots in the upper right corner > select Settings.
    3. Select Settings tab.
    4. Under Files-On-Demand, uncheck checkbox Save space and download files as you use them.