Selecting a power plan ....................................................................................................................... 36
Running on battery power .................................................................................................................. 36
Conserving battery power .................................................................................................. 38
Using a USB device ........................................................................................................................... 42
Connecting a USB device .................................................................................................. 42
Removing a USB device .................................................................................................... 43
8 Maintaining your computer .......................................................................................................................... 46
Improving performance ...................................................................................................................... 46
Using HP 3D DriveGuard ................................................................................................... 46
Using Disk Defragmenter ................................................................................................... 46
Using Disk Cleanup ........................................................................................................... 47
Cleaning your computer ..................................................................................................................... 47
vii