Hello Bill1015;
Recovery Disk not required:
1. Connect the AC power cable to the notebook. Hold down the "0" key and press the "Power" button to turn the notebook on. Continue holding down the "0" key while the notebook boots up. The Toshiba Recovery Wizard is displayed on the screen.
2. Select "Recovery of Factory Default Software" and then click "Next." The "Recovery of Factory Default Software" program window appears.
3. Select "Recover to out-of-the-box state,"