To back up only files that have changed

  1. Click the Backup tab.
  2. On the Settings menu, click Options.
  3. On the Backup tab, click Incremental, and then click OK.
  4. Click the files you want to back up, and then click Next Step.<
  5. Select a destination.
  6. On the File menu, click Save As.
  7. Type a name for the file set and then click Save.
  8. Click Start Backup.

Notes