To restore your laptop to its factory settings, follow these steps:
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Warning: All data on the hard drive will be erased. Back up any important data before proceeding. Make sure the computer is connected to a power supply and do not switch it off or restart during the process.
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1) Hold down the power button for ten seconds to switch off your machine
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Please note: Holding down the power button on the machine forces it to switch off. Any unsaved data will be lost.
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2) Press and hold the zero key and at the same time, tap the power button once to switch on your notebook
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3) When the machine starts beeping, release the zero key
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4) When prompted by the warning screen, select Yes to continue with the system recovery
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5) Select Recovery of Factory Default Software and click Next
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6) Select Recover to out-of-box state and Click Next again
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7) Click Next to Start the recovery
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if doesn't restore, then you'll need OS (Windows) installation DVD disk
Hi,
as first try his guide:
http://ccm.net/faq/4811-toshiba-laptop-reset-to-factory-settings
if doesn't restore, then you'll need OS (Windows) installation DVD disk
Regards,
Kris