To see how to back up ACE onto an external drive, see How To Backup ACE on an external drive.
1. On the main menu, go to Setup > Backup and Restore to load the Database Backup screen.
2. First make sure that you have C:\Program Files\ACE 3000\Database\Backup in the Default Backup File Folder (change it if different).
3. Click on Backup Now and wait till the backup finishes, then click OK on the Backup Completed message.
4. The backup has been completed.