HP 421 Notebook-PC - Manual (Page 125)

Downloading a BIOS update
CAUTION: To prevent damage to the computer or an unsuccessful installation, download and
install a BIOS update only when the computer is connected to reliable external power using the AC
adapter. Do not download or install a BIOS update while the computer is running on battery power,
docked in an optional docking device, or connected to an optional power source. During the
download and installation, follow these guidelines:
Do not disconnect power from the computer by unplugging the power cord from the AC outlet.
Do not shut down the computer or initiate Sleep or Hibernation.
Do not insert, remove, connect, or disconnect any device, cable, or cord.
To download a BIOS update:
NOTE: BIOS updates are posted as needed. A newer BIOS update may not be available for your
computer. It is recommended that you check the HP Web site periodically for BIOS updates.
1. Open your Internet browser, go to http://www.hp.com/support , and then select your country or
region.
2. Click the option for software and driver downloads, type your computer model number in the
product box, and then press
enter .
3. Click your specific product from the models listed.
4. Click your operating system.
5. Follow the on-screen instructions to access the BIOS update you want to download. Make a
note of the download date, name, or other identifier. You may need this information to locate the
update later, after it has been downloaded to your hard drive.
6. At the download area, perform these steps:
a. Identify the BIOS update that is newer than the BIOS version currently installed on your
computer.
b. Follow the instructions on the screen to download your selection to the hard drive.
Make a note of the path to the location on your hard drive where the BIOS update will be
downloaded. You will need to access this path when you are ready to install the update.
NOTE: If you connect your computer to a network, consult the network administrator before
installing any software updates, especially system BIOS updates.
BIOS installation procedures vary. Follow any instructions that are displayed on the screen after the
download is complete. If no instructions are displayed, follow these steps:
1. Open Windows Explorer by selecting Start > Computer.
2. Double-click your hard drive designation. The hard drive designation is typically Local Disk (C:).
3. Using the hard drive path you recorded earlier, open the folder on your hard drive that contains
the update.
4. Double-click the file that has an .exe extension (for example, filename.exe).
Updating the BIOS 113