Using the hot keys

38

6 Managing power

39

Initiating Sleep and Hibernation

39

Manually initiating and exiting Sleep

39

Manually initiating and exiting Hibernation (select models only)

40

Setting password protection on wakeup

40

Using the power meter and power settings

40

Running on battery power

40

Removing a user-replaceable battery

41

Finding battery information

41

Conserving battery power

42

Identifying low battery levels

42

Resolving a low battery level

42

Resolving a low battery level when external power is available

42

Resolving a low battery level when no power source is available

42

Resolving a low battery level when the computer cannot exit Hibernation

43

Storing a user-replaceable battery

43

Disposing of a user-replaceable battery

43

Replacing a user-replaceable battery

43

Running on external AC power

43

Troubleshooting power problems

44

HP CoolSense (select models only)

44

Shutting down (turning off) the computer

45

7 Managing and sharing information

46

Using a USB device

46

Connecting a USB device

46

Removing a USB device

47

Inserting and removing a memory card

47

8 Maintaining your computer

49

Improving performance

49

Handling drives

49

Replacing a hard drive

49

Using HP 3D DriveGuard (select models only)

52

Identifying HP 3D DriveGuard status

52

Using Disk Defragmenter

53

Using Disk Cleanup

53

Adding or replacing memory modules

53

vii

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HP E2S18UAABA manual Using the hot keys