User Guide

If your PC does not start in Windows, you can use HP PC Hardware Diagnostics UEFI to diagnose hardware
issues.
When HP PC Hardware Diagnostics UEFI detects a failure that requires hardware replacement, a 24-digit
Failure ID code is generated. For assistance in solving the problem:
▲ Select Contact HP, accept the HP privacy disclaimer, and then use a mobile device to scan the Failure ID
code that appears on the next screen. The HP Customer Support - Service Center page appears with your
Failure ID and product number automatically lled in. Follow the on-screen instructions.
– or –
Contact support, and provide the Failure ID code.
NOTE: To start diagnostics on a convertible computer, your computer must be in notebook mode, and you
must use the attached keyboard.
NOTE: If you need to stop a diagnostic test, press esc.
Starting HP PC Hardware Diagnostics UEFI
To start HP PC Hardware Diagnostics UEFI, follow these steps:
1. Turn on or restart the computer, and quickly press esc.
2. Press f2.
The BIOS searches three places for the diagnostic tools, in the following order:
a. Connected USB ash drive
NOTE: To download the HP PC Hardware Diagnostics UEFI tool to a USB ash drive, see
Downloading the latest HP PC Hardware Diagnostics UEFI version on page 49.
b. Hard drive
c. BIOS
3. When the diagnostic tool opens, select a language, select the type of diagnostic test you want to run,
and then follow the on-screen instructions.
Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive
Downloading HP PC Hardware Diagnostics UEFI to a USB ash drive can be useful in the following situations:
● HP PC Hardware Diagnostics UEFI is not included in the preinstallation image.
● HP PC Hardware Diagnostics UEFI is not included in the HP Tool partition.
● The hard drive is damaged.
NOTE: The HP PC Hardware Diagnostics UEFI downloading instructions are provided in English only, and you
must use a Windows computer to download and create the HP UEFI support environment because only .exe
les are provided.
Downloading the latest HP PC Hardware Diagnostics UEFI version
To download the latest HP PC Hardware Diagnostics UEFI version to a USB ash drive:
1. Go to http://www.hp.com/go/techcenter/pcdiags. The HP PC Diagnostics home page is displayed.
2. Select Download HP Diagnostics UEFI, and then select Run.
Using HP PC Hardware Diagnostics UEFI 49