You may see the following error message indicating that your File History drive has been disconnected for too long.
Error message: Reconnect Your File History Drive in Windows
Try the following troubleshooting steps to resolve the issue:
- If you’re backing up to an external drive (like a USB drive), make sure it’s connected to your PC.
- If you’re backing up to a network location, open the Control Panel, under System and Security, select File History and reselect the network.
After you’re reconnected, wait for the next scheduled backup. If you prefer to start a backup manually, open the Control Panel, under System and Security, select File History > Run now.