7 Using HP PC Hardware Diagnostics (UEFI)
HP PC Hardware Diagnostics is a Unified Extensible Firmware Interface (UEFI) that 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.
To start HP PC Hardware Diagnostics (UEFI):
1. Turn on or restart the computer, quickly press esc, and then press f2.
The BIOS searches 3 places for the diagnostic tools, in the following order:
a. Connected USB drive
NOTE: To download the HP PC Hardware Diagnostics (UEFI) tool to a USB drive, see
Downloading
HP PC Hardware Diagnostics (UEFI) to a USB device on page 120.
b. Hard drive
c. BIOS
2. When the diagnostic tool opens, use the keyboard arrow keys to select the language and the type of
diagnostic test you want to run, and then follow the on-screen instructions.
NOTE: If you need to stop a diagnostic test, press esc.
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