You can not use System Recovery Options if restoring the pre-installed
software without System Recovery Options.
When you reinstall the Windows operating system, the hard disk will be
reformatted and all data will be lost.
1. Turn off your computer.
2.
While holding down 0 (zero) key on the keyboard, turn on your
computer.
3. A menu will be displayed from which you should follow the on-screen
instructions.
TOSHIBA DX730/DX735/Qosmio DX730 Series
User's Manual 4-24