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6 Managing power ............................................................................................................................................ 37
Initiating Sleep and Hibernation ......................................................................................................... 37
Manually initiating and exiting Sleep .................................................................................. 37
Manually initiating and exiting Hibernation (select models only) ....................................... 38
Setting password protection on wakeup ............................................................................ 38
Using the power meter and power settings ........................................................................................ 38
Running on battery power .................................................................................................................. 38
Removing a user-replaceable battery ................................................................................ 39
Finding battery information ................................................................................................ 39
Conserving battery power .................................................................................................. 40
Identifying low battery levels .............................................................................................. 40
Resolving a low battery level ............................................................................................. 40
Resolving a low battery level when external power is available ........................ 40
Resolving a low battery level when no power source is available ..................... 40
Resolving a low battery level when the computer cannot exit Hibernation ....... 41
Storing a user-replaceable battery ..................................................................................... 41
Disposing of a user-replaceable battery ............................................................................ 41
Replacing a user-replaceable battery ................................................................................ 41
Running on external AC power .......................................................................................................... 41
Troubleshooting power problems ...................................................................................... 42
Shutting down (turning off) the computer ........................................................................................... 42
7 Maintaining your computer .......................................................................................................................... 44
Improving performance ...................................................................................................................... 44
Using Disk Defragmenter ................................................................................................... 44
Using Disk Cleanup ........................................................................................................... 44
Updating programs and drivers .......................................................................................................... 45
Cleaning your computer ..................................................................................................................... 45
Cleaning procedures .......................................................................................................... 45
Cleaning the display (All-in-Ones or Notebooks) .............................................. 45
Cleaning the sides or cover ............................................................................... 46
Cleaning the TouchPad, keyboard, or mouse ................................................... 46
Traveling with or shipping your computer ........................................................................................... 46
8 Securing your computer and information .................................................................................................. 48
Using passwords ................................................................................................................................ 48
Setting Windows passwords .............................................................................................. 49
Setting Setup Utility (BIOS) passwords ............................................................................. 49
Using Internet security software ......................................................................................................... 49
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