HOW DO I USE DIAGNOSTICS?
HP PC Hardware Diagnostics Windows is a Windows-based utility that allows you to run diagnostic tests to determine if the computer hardware is functioning properly. The tool runs within the Windows operating system in order to diagnose hardware failures. HP PC Hardware Diagnostics Windows comes pre-installed on new HP computers, but if not on yours, download here:
HP PC HARDWARE DIAGNOSTICS 4-IN-1 USB KEY
For HP authorized service partners and IT professionals who need to support a mixed environment of older and newer HP/Compaq PCs, the HP PC Diagnostics 4-in-1 USB Key is a diagnostic tool that supports a wide range of HP Desktop and Notebook PCs. This Key includes HP PC Hardware Diagnostics Windows, HP PC Hardware Diagnostics UEFI, HP Vision Diagnostics, and files supporting recovery of a corrupted BIOS on supported systems.
HP Vision Diagnostics is supported for HP Workstations manufactured between September 2009 and June 2012. Executable from either a bootable CD or USB key, HP Vision Diagnostics will perform tests on the computer hardware and memory outside the operating system.