How to restore Toshiba laptop to factory default

Try these, hope they will help you:
1. Copy all your files and documents to an external storage device.
2. Shut down the computer.
3. Turn the PC back on and hit the F8 key repeatedly until the Advanced Boot Option Screen appears.
4. Click "Repair Your Computer" if you are not already on it and then press ENTER
5. choose your country and click OK
6. On the "System Recovery Options Screen" click "Restore Application" which is the last option.
Or
Press C when you turn the laptop on,then let it go when the Thoshiba logo appear, then choose 'Restore to factory default'