HP PC Hardware Diagnostics tools help you determine if your computer’s hardware is functioning properly. They can quickly diagnose hardware failures, streamline support calls, and help avoid returning working hardware.
The tool is Unified Extensible Firmware Interface (UEFI) based, meaning it runs outside of the Windows operating system. This is crucial because if your operating system is corrupted or failing to load, you can still run these tests to see if the hardware itself is the culprit. hp.com/go/techcenter/pcdiags