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84<br />
NOTE<br />
Getting Started<br />
Turning off the computer<br />
❖ Restarting from Hibernation takes a little more time and<br />
consumes more main battery power than restarting from Sleep.<br />
❖ When starting up again, the computer returns to the state in<br />
which you left it, including all open programs and files you<br />
were using.<br />
For information on how to use and configure Hibernation mode see<br />
“Using and configuring Hibernation mode” on page 87.<br />
Sleep mode<br />
The Sleep command places the computer into a power-saving<br />
mode. Sleep saves the current state of the computer to memory so<br />
that, when you restart the computer, you can continue working from<br />
where you left off.<br />
After your computer sleeps for an extended period of time, the<br />
Windows ® operating system may save any open documents and<br />
programs to your internal storage drive, and then shuts down the<br />
computer.<br />
Factors to consider when choosing Sleep:<br />
❖ While in Sleep mode, the computer uses some main battery<br />
power.<br />
❖ Because the state of the system is stored in memory, you will<br />
lose data if the main battery discharges completely while the<br />
computer is in Sleep mode.<br />
❖ Restarting from Sleep takes less time and consumes less main<br />
battery power than restarting after turning off the computer<br />
using the Hibernation or Shut down commands.<br />
❖ When starting up again, the computer returns to the mode in<br />
which you left it, including all open programs and files you<br />
were using.<br />
❖ If the battery charge becomes critically low, the computer will<br />
try to enter Hibernation mode.<br />
If you power down using the Sleep command and the main battery<br />
discharges fully, your unsaved information will be lost. Be sure to<br />
save your work first.<br />
For information on using Sleep, see “Using and configuring Sleep<br />
mode” on page 89.