Use this method if your computer is crashing or won't boot properly.
Because "HP Diagnostic Tool" can refer to several different utilities depending on whether you are using a laptop, a desktop, or a printer, this guide covers the two primary tools used for PC hardware troubleshooting: and HP Support Assistant . hp diagnostic tool download
Select and click Start Fast Test to begin a quick check. 2. HP PC Hardware Diagnostics UEFI Use this method if your computer is crashing
This is a general-purpose tool that includes built-in diagnostics along with driver updates and automated fixes. HP PC Hardware Diagnostics - HP Support or a printer