User Guide

HP PC Hardware Diagnostics UEFI (Unied Extensible Firmware Interface) allows you to run diagnostic tests to
determine whether the computer hardware is functioning properly. The tool runs outside the operating
system so that it can isolate hardware failures from issues that are caused by the operating system or other
software components.
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 Get Support, and then use a mobile device to scan the QR code that displays 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 20.
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.
Using HP PC Hardware Diagnostics UEFI 19