HP dv4-2160us Manuel d'utilisateur Page 152
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Updating the BIOS
To update the BIOS, first determine what BIOS version you currently have and then download and install
the new BIOS.
Determining the BIOS version
To determine whether available BIOS updates contain later BIOS versions than those currently installed
on the computer, you need to know the version of the system BIOS currently installed.
BIOS version information (also known as ROM date and System BIOS) can be displayed by pressing
fn+esc (if you are already in Windows) or by opening Setup Utility.
To use Setup Utility for displaying BIOS information:
1. Open Setup Utility by turning on or restarting the computer. While the “Press the ESC key for
Startup Menu” message is displayed in the lower left corner of the screen, press f10.
2. If Setup Utility does not open with the system information displayed, use the arrow keys to select
the Main menu.
When the Main menu is selected, BIOS and other system information is displayed.
3. To exit Setup Utility, use the arrow keys to select Exit > Exit Discarding Changes, and then press
enter.
140 Appendix B Software updates
- Notebook PC User Guide 1
- Safety warning notice 3
- Table of contents 5
- Starting HP QuickWeb 14
- 2 Features 15
- Components 16
- Components 5 17
- 6 Chapter 2 Features 18
- Components 7 19
- 8 Chapter 2 Features 20
- Components 9 21
- Front components 22
- Rear component 22
- Right-side components 23
- Left-side components 24
- Bottom components 25
- Wireless antennas 26
- Components 15 27
- Using wireless devices 29
- Using the wireless controls 30
- Using the wireless button 31
- Using HP Wireless Assistant 31
- Using a WLAN 33
- Protecting your WLAN 34
- Connecting to a WLAN 35
- Roaming to another network 35
- Inserting a SIM 37
- Removing a SIM 38
- Cannot connect to a WLAN 40
- Network icon is not displayed 41
- WLAN connection is very weak 42
- Connecting a modem cable 43
- Selecting a location setting 44
- Using the TouchPad 48
- Setting TouchPad preferences 49
- Connecting an external mouse 49
- Using keyboard hotkeys 50
- Opening Help and Support 51
- Opening a Web browser 52
- Switching the screen image 52
- Decreasing screen brightness 53
- Increasing screen brightness 53
- Initiating Sleep 53
- Initiating QuickLock 53
- Stopping an audio CD or a DVD 54
- Using keypads 55
- 5 Multimedia 58
- Multimedia features 47 59
- Adjusting the volume 61
- Multimedia software 63
- Checking your audio functions 64
- Connecting an HDMI device 66
- Configuring audio for HDMI 67
- Troubleshooting 70
- A disc does not play 72
- Models Only) 76
- Button quick reference 77
- Button quick reference 67 79
- Button quick reference 73 85
- 8 Power management 89
- Using the battery meter 90
- Using power plans 91
- Using external AC power 93
- Connecting the AC adapter 94
- Testing an AC adapter 95
- Using battery power 96
- Charging a battery 98
- Managing low battery levels 99
- Resolving a low battery level 100
- Calibrating a battery 101
- Step 3: Discharge the battery 102
- Conserving battery power 103
- Storing a battery 103
- Disposing of a used battery 103
- Replacing the battery 103
- Shutting down the computer 104
- Handling drives 105
- Optical drive 106
- Using optical discs 107
- Selecting the right disc 108
- Playing a CD, DVD, or BD 109
- Configuring AutoPlay 110
- Changing DVD region settings 110
- Copying a CD or DVD 111
- Using external drives 114
- Using Disk Defragmenter 115
- Using Disk Cleanup 115
- Replacing the hard drive 118
- To install a hard drive: 119
- Replacing the hard drive 107 119
- 5. Close the cover (2) 120
- 108 Chapter 9 Drives 120
- Replacing the hard drive 109 121
- 10 External devices 124
- Removing a USB device 125
- Using an eSATA device 126
- Using the expansion port 127
- 11 External media cards 128
- Removing a digital card 129
- Using ExpressCards 130
- Removing an ExpressCard 132
- 12 Memory modules 133
- 16. Turn on the computer 136
- 13 Security 137
- Using passwords 138
- Administrator password 139
- Power-on password 140
- Using antivirus software 141
- Using firewall software 141
- Registering fingerprints 144
- A Setup Utility (BIOS) 146
- Using Setup Utility 147
- Displaying system information 148
- Setup Utility menus 149
- System Configuration menu 150
- Diagnostics menu 150
- B Software updates 151
- Updating the BIOS 152
- Downloading a BIOS update 153
- Updating programs and drivers 154
- C Backup and recovery 155
- Creating recovery discs 156
- Backing up your information 157
- Using system restore points 159
- Performing a recovery 160
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