Samsung NP940X3M User Manual page 71

Troubleshooting
Recovering to factory default
You can restore the computer to its factory default settings. If
necessary, back up important data to an external storage device
before restoring the system. See
1
When the computer starts Windows:
Select the Start button ( ) → Samsung → Samsung
Recovery.
When the computer does not start Windows:
Turn on the computer and press the F4 key several times.
Backing up data.
2
Select Backup management → Factory image → Recover.
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