Samsung Galaxy Book3 User Manual page 23

Basics
5
Repeatedly lift and rest your finger on the fingerprint
recognition sensor until setup is complete.
The fingerprint recognition sensor's location may vary
depending on the model.
6
Fingerprint registration is complete.
If you want to add another fingerprint, select Add a finger.
Removing a fingerprint
1
Select the Start button ( ) → Settings → Accounts →
Sign-in options.
2
Select Fingerprint recognition (Windows Hello) →
Remove.
The fingerprint will be removed.
Unlocking the screen with a fingerprint
You can unlock the screen by resting your fingerprint on the
fingerprint recognition sensor.
Place a registered finger on the fingerprint recognition sensor.
The screen will be unlocked if the fingerprint is scanned
correctly.
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