Acer B1-730HD - Manual (Page 19)

Using your tablet - 19
Security Options
For additional security, you may set a code or number that must be
entered to access the tablet, such as an unlock pattern (a set of dots
that must be tapped in the correct order). Open the Home screen and
tap APPS > Settings > Security > Screen lock. If you forget your
unlock pattern, please refer to
Unlock pattern on page 44 .
Shutting down your tablet
If you won’t use your tablet for an extended period of time, turn it off to
save battery power. To turn off your tablet (even when locked), press
and hold the power button for one second. Tap Power off and confirm
the shut down. To force a shutdown, press and hold the power button
for four seconds.