Toshiba Satellite C50-C User Manual page 37

If you have previously chosen to delete the recovery image without creating
"Recovery Media", the "Recovery Media" cannot be created.
However, if you have already created a "Recovery Media", you can use it
to restore the recovery image.
If you have not created "Recovery Media", contact TOSHIBA support for
assistance.
Restoring the pre-installed software from the Hard
Disk Drive
A portion of the total Hard Disk Drive space is used to store the recovery
image which can be used to restore pre-installed software in the event of a
problem.
Make sure that the AC adaptor is connected during the restoring process.
When you reinstall the Windows operating system, the hard disk will be
reformatted and all data will be lost.
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You can also perform the restoration through Settings in the operating
system:
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User's Manual
Click Start -> Power and then select Restart.
Hold down 0 (zero) key and then release this key one second after the
computer is power on.
Select Troubleshoot.
Select Reset your PC.
Follow the on-screen instructions to finish the recovery.
Go to Settings and click Update & security -> Recovery.
Click Get started under Reset this PC.
Follow the on-screen instructions to finish the recovery.
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