If your Toshiba Satellite P300 is unstable, bogged down with malware or has just slowed down over the course of time, you can bring your computer back up to speed by restoring it to the original factory settings. Recovering the P300 will erase everything on the hard drive and reinstall the programs that were on the computer when it shipped from the factory. The recovery process removes any viruses, restores system files and removes programs you no longer use that may be slowing down your machine. The recovery program is launched while the computer is booting up.
Click the "Windows" icon in the lower left corner of your desktop to open the Start menu. Click the "Shut Down" button in the lower right corner of the Start menu to shut the computer down.
Hold down the "0" key and press the "Power" button. Continue holding down the "0" key until the Toshiba Recovery Wizard appears on the screen.
Click to select "Recovery of Factory Default Software" and then click "Next."
Click on "Recover to out-of-box state" and click "Next." A dialogue box opens warning you that resetting the Toshiba Satellite P300 to its factory settings will erase all of your data.
Click "Next" to acknowledge the warning and begin the recovery process. A message will appear when the recovery is complete. Press any key on the keyboard to restart the computer. The Toshiba Satellite P300 will boot to the Windows set-up screen where you can begin customising Windows on your laptop.
Back up your personal files to CDs, DVDs, a flash drive or an external hard drive before beginning the recovery process.