Running on battery power .................................................................................................................. 41
Conserving battery power .................................................................................................. 42
Running on external power ................................................................................................................ 44
HP CoolSense .................................................................................................................................... 45
Shutting down the computer ............................................................................................................... 45
Using a USB device ........................................................................................................................... 46
Connecting a USB device .................................................................................................. 46
Removing a USB device .................................................................................................... 47
Using optical drives ............................................................................................................................ 49
Inserting an optical disc ..................................................................................................... 50
Removing an optical disc ................................................................................................... 50
8 Maintaining your computer .......................................................................................................................... 52
Improving performance ...................................................................................................................... 52
Handling drives .................................................................................................................. 52
Replacing a hard drive ....................................................................................................... 53
Using Disk Defragmenter ................................................................................................... 55
Using Disk Cleanup ........................................................................................................... 55
Cleaning your computer ..................................................................................................................... 61
Using passwords ................................................................................................................................ 64
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