HP PC Hardware Diagnostics

Spec sheet

Purpose

HP provides diagnostic software to test computer hardware components and confirm hardware failures.Read 4 Oct 2026 · support.hp.com

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.Read 4 Oct 2026 · support.hp.com

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.Read 3 Oct 2026 · support.hp.com

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.Read 3 Oct 2026 · support.hp.com

Boot troubleshooting

When Windows cannot start, HP directs users to run UEFI diagnostics from the F2 startup menu or from a USB flash drive.Read 3 Oct 2026 · support.hp.com

Compatibility limit

Available tests can differ depending on the components installed on the computer.Read 4 Oct 2026 · support.hp.com

Component checks

Documented component tests include processor, memory, storage, power, audio, keyboard, network, and video checks.Read 3 Oct 2026 · support.hp.com

Download options

HP says the Windows tool can be downloaded from its diagnostics page or the Microsoft Store.Read 4 Oct 2026 · support.hp.com

Failure reporting

When a component fails, diagnostics can provide a 24-digit failure ID for contacting HP Customer Support.Read 4 Oct 2026 · support.hp.com

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.Read 4 Oct 2026 · support.hp.com

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.Read 3 Oct 2026 · support.hp.com

Other diagnostic tools

HP also offers a Windows tool for diagnosing connected HP dock and display hardware.Read 3 Oct 2026 · support.hp.com

Preinstallation

HP PC Hardware Diagnostics Windows comes pre-installed on new HP computers.Read 4 Oct 2026 · support.hp.com

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.Read 3 Oct 2026 · support.hp.com

Supported Windows versions

The current Windows tool supports Windows 10 and Windows 11.Read 4 Oct 2026 · support.hp.com

Test coverage

The documented component tests include processor, memory, storage, power, audio, Bluetooth, fan, keyboard, mouse or touchpad, network, and video tests.Read 4 Oct 2026 · support.hp.com

UEFI diagnostics

HP PC Hardware Diagnostics UEFI runs outside the operating system to help identify, isolate, and diagnose hardware issues.Read 3 Oct 2026 · support.hp.com

UEFI version

HP PC Hardware Diagnostics UEFI runs outside the operating system to help identify, isolate, and diagnose hardware issues.Read 4 Oct 2026 · support.hp.com

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.Read 4 Oct 2026 · support.hp.com

Windows diagnostics

HP PC Hardware Diagnostics Windows tests hardware components within Windows and is supported on Windows 10 and 11.Read 3 Oct 2026 · support.hp.com

Windows features

The Windows tool offers driver checks and updates for select components and can test hardware components.Read 4 Oct 2026 · support.hp.com

Windows test limit

The documented memory Quick Test is not currently available in the Windows version.Read 4 Oct 2026 · support.hp.com

Windows version

HP PC Hardware Diagnostics Windows runs within Windows to diagnose hardware failures.Read 4 Oct 2026 · support.hp.com

Where Specifiction places it

• Hardware Diagnostic Software#18 of 267.2