8 Using HP PC Hardware Diagnostics (UEFI) –
Windows 10
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.
NOTE: To start BIOS on a convertible computer, your computer must be in notebook mode and you must
use the keyboard attached to your tablet. The on-screen keyboard, which displays in tablet mode, cannot
access BIOS.
To start HP PC Hardware Diagnostics UEFI:
1. Start BIOS:
●
Computers or tablets with keyboards:
▲ Turn on or restart the computer, quickly press esc.
●
Tablets without keyboards:
▲ Turn on or restart the tablet, and then quickly hold down the volume down button.
‒ or –
Turn on or restart the tablet, and then quickly hold down the Windows button.
2. Press or tap f2.
The BIOS searches three 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 81.
b. Hard drive
c. BIOS
3. When the diagnostic tool opens, select the type of diagnostic test you want to run, and then follow
the on-screen instructions. On a tablet, press the volume down button to stop a diagnostic test.
NOTE: If you need to stop a diagnostic test on computers or tablets with a keyboard, press esc.
80 Chapter 8 Using HP PC Hardware Diagnostics (UEFI) – Windows 10
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