- Go to Maintenance > Backup and restore (Web GUI) on old Expressway and create the system backup file.
- Install new Expressway with (same version as the old Expressway).
- Install required release key and option key(s) on new Expressway installed in step 2.
- Go to Maintenance > Backup and restore (Web GUI) on new Expressway and upload system backup file that you generated in step 1.