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HP PC Hardware Diagnostics

HP PC Hardware Diagnostics is a set of tools for testing computer components and identifying hardware failures.

Place
#21 of 26
Score
5.5
HP PC Hardware Diagnostics's website

What HP PC Hardware Diagnostics is

HP PC Hardware Diagnostics is a set of tools for testing computer components and identifying hardware failures. The Windows application runs within Windows 10 or 11, while UEFI diagnostics runs outside the operating system to help identify and isolate problems. Listed tests cover processor, memory, storage, power, audio, Bluetooth, fan, keyboard, mouse or touchpad, network, and video; available tests vary with installed components. The Windows tool also offers driver checks and updates for select components, and HP says it comes pre-installed on new HP computers or can be downloaded from its diagnostics page or the Microsoft Store. If Windows cannot start, UEFI diagnostics can be launched from the F2 startup menu or run from a USB flash drive. Diagnostics can generate a 24-digit failure ID to use with the product number when starting a repair process. HP says UEFI tests are intended for genuine HP hardware and does not guarantee they will work on other manufacturers’ products. The software is free. The Windows memory Quick Test is not currently available.

Good

  • Tests a broad range of hardware components
  • UEFI diagnostics can run outside Windows
  • Failure IDs can be used to begin a repair process
  • Free to use

Watch out

  • UEFI tests are not guaranteed on non-HP hardware
  • Windows memory Quick Test is unavailable
  • Available tests vary by installed components

Who it suits

It suits HP computer owners checking hardware problems and users who need to diagnose a PC that cannot start Windows. The 4-in-1 USB Key is described for HP service partners and IT professionals.

Verdict

HP PC Hardware Diagnostics offers Windows-based and bootable options for identifying hardware issues, including when Windows will not start. Check hardware compatibility and test availability before relying on a particular diagnostic.

The facts

Each one read from HP PC Hardware Diagnostics's own pages, with the date it was checked.

What it does

4-in-1 USB Key
The 4-in-1 USB Key combines Windows and UEFI diagnostics, dock and display diagnostics, and BIOS recovery files for supported systems; HP describes it for authorized service partners and IT professionals.checked 3 Oct 2026
Boot troubleshooting
When Windows cannot start, HP directs users to run UEFI diagnostics from the F2 startup menu or from a USB flash drive.checked 3 Oct 2026
Compatibility limit
Available tests can differ depending on the components installed on the computer.checked 4 Oct 2026
Component checks
Documented component tests include processor, memory, storage, power, audio, keyboard, network, and video checks.checked 3 Oct 2026
Download options
HP says the Windows tool can be downloaded from its diagnostics page or the Microsoft Store.checked 4 Oct 2026
Failure reporting
When a component fails, diagnostics can provide a 24-digit failure ID for contacting HP Customer Support.checked 4 Oct 2026
Fast test
The Windows Fast Test checks disk read, video memory, wireless, CPU stress, and battery, and takes about 3 to 5 minutes or more depending on system configuration.checked 4 Oct 2026
Hardware compatibility
HP states that UEFI diagnostics tests can only be performed correctly on genuine HP hardware and does not guarantee operation on other companies’ products.checked 3 Oct 2026
Intended users
The 4-in-1 USB Key is described for HP authorized service partners and IT professionals supporting mixed environments of older and newer HP/Compaq PCs.checked 4 Oct 2026
Other diagnostic tools
HP also offers a Windows tool for diagnosing connected HP dock and display hardware.checked 3 Oct 2026
Preinstallation
HP PC Hardware Diagnostics Windows comes pre-installed on new HP computers.checked 4 Oct 2026
Purpose
HP provides diagnostic software to test computer hardware components and confirm hardware failures.checked 4 Oct 2026
Remote diagnostics
Remote PC Hardware Diagnostics UEFI can be configured to download and run UEFI diagnostics and optionally upload a diagnostic log through F10 setup on select business products.checked 3 Oct 2026
Support
HP’s diagnostics support page directs users who receive a 24-digit failure code to enter it with their product number to start a repair process.checked 3 Oct 2026
Test coverage
The documented component tests include processor, memory, storage, power, audio, Bluetooth, fan, keyboard, mouse or touchpad, network, and video tests.checked 4 Oct 2026
UEFI diagnostics
HP PC Hardware Diagnostics UEFI runs outside the operating system to help identify, isolate, and diagnose hardware issues.checked 3 Oct 2026
UEFI version
HP PC Hardware Diagnostics UEFI runs outside the operating system to help identify, isolate, and diagnose hardware issues.checked 4 Oct 2026
USB use
HP says UEFI diagnostics can be installed on a USB flash drive and run when diagnostics on the computer's hard drive are unavailable.checked 4 Oct 2026

Where it runs

Supported Windows versions
The current Windows tool supports Windows 10 and Windows 11.checked 4 Oct 2026
Windows diagnostics
HP PC Hardware Diagnostics Windows tests hardware components within Windows and is supported on Windows 10 and 11.checked 3 Oct 2026
Windows features
The Windows tool offers driver checks and updates for select components and can test hardware components.checked 4 Oct 2026
Windows test limit
The documented memory Quick Test is not currently available in the Windows version.checked 4 Oct 2026
Windows version
HP PC Hardware Diagnostics Windows runs within Windows to diagnose hardware failures.checked 4 Oct 2026

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