Many Toshiba computers/tablets come with the factory software recovery image
stored in a special (hidden) area on the hard disk. From this special
hidden system recovery image, you can restore your computer to its factory-
fresh software condition by following these steps:
Make sure the device is turned off ("Shut-down" from the Windows Start menu)
Remove any peripherals such an external mouse, keyboard, monitor, USB flash
drive etc.
Make sure the AC Adapter is plugged in and working.
Press and hold down the 0 (zero) key on the keyboard while powering on the
computer/tablet. Release it when the recovery warning screen appears.
If the recovery process offers a choice of Operating Systems, select the
appropriate one for you.
A warning screen appears, stating that when the recovery is executed all
data will be deleted and rewritten.
Click Yes to continue.
When the Toshiba Recovery Wizard opens select "Recovery of Factory Software"
or the appropriate option for your needs.
Continue to follow the directions restarting as necessary.
For devices equipped with Windows 8, "Reset" returns your device to its out-
of-box, factory default conditions (removes your personal files and apps as
well reset all settings to defaults) similar to a “System Recovery.” Refer
to the How To: Understanding System Restore, Refresh, Reset, and, Recovery
options in Windows 8 + Video knowledge base article for complete information.
Please note that the process may vary slightly from machine to machine, that
you may be asked to insert disks (multi-disk packages) and that the process
may take one to two hours to complete. The recovery process will restart
your computer several times.
As you use the recovery process you will have several options. One of these
may be to create a custom size partition. Follow the directions on screen
for this and other options as prompted. When in doubt, it's usually best to
accept the default, or pre-selected option.
If you would like to learn more about how to create your own recovery media
Click Here
简单说,就是启动时按0