How to run HP hardware diagnostics

💡 Need to know

• Windows starts normally? HP Hardware Diagnostics for Windows can test components from the desktop.
• Can’t boot? The UEFI version runs before Windows and can still test the hardware.
• Start with the Quick Test—It checks several major components before you spend time on deeper tests.
• Save any failure ID—That code is much more useful than “the laptop keeps crashing.”

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When an HP® laptop starts crashing, running slowly, or refusing to charge, it’s easy to start blaming whatever component sounds guilty at the moment. The battery? The memory? Maybe the hard drive?

At Asurion, our experts know guessing can lead to a lot of troubleshooting you never needed to do. HP hardware diagnostics can test key components and give you something much more useful to work with: actual results. Here’s how to run the tests, understand what they find, and figure out what to do next.

Use the Windows tool when the laptop still starts

HP PC Hardware Diagnostics Windows can test hardware while Windows is running. Search for HP PC Hardware Diagnostics Windows from the Start menu. If it’s installed, open it and choose the test that matches the problem. Depending on the model and tool version, that can include memory, storage, battery, processor, and other components.

The Windows tool is convenient when the laptop is stable enough to use. When it isn’t, the UEFI version is more useful.

Run the UEFI Quick Test when Windows won’t start

1. Shut the laptop down completely.
2. Turn it on and immediately press Esc repeatedly, about once per second.
3. When the Startup Menu appears, press F2.
4. Choose System Tests.
5. Select the Quick Test.
6. Choose Run once.

The UEFI Quick Test checks several major hardware components and is a smart first test before anyone starts reinstalling Windows or replacing parts.

Test the part that matches the symptom

A full system test is useful when the problem is vague. A component test is better when the symptom already points somewhere.

Battery or charging problems are a good reason to run the Battery and AC Adapter tests. Repeated freezes, crashes, or startup errors are good reasons to test memory and storage. If one component fails, there’s no need to keep running unrelated tests hoping for a nicer answer.

Write down the failure ID

When an HP hardware test fails, the diagnostic tool may provide a 24-digit failure ID. Save it. Take a picture. Write it somewhere other than the laptop that may or may not start again. That code is much more useful than trying to explain that “sometimes the screen freezes, except yesterday when it restarted.”

A passed test is useful too

A passing hardware test doesn’t mean the laptop is magically problem-free. It means the component HP tested did not show a failure during that test.

If the memory and storage tests pass but the laptop crashes only after one Windows driver loads, software becomes more interesting. If the battery test passes but one charger fails and another works, the adapter deserves attention.

The point of diagnostics isn’t just finding failures. It’s shrinking the list of reasonable suspects.

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FAQ

How do I open HP hardware diagnostics?

Restart the laptop, press Esc repeatedly as it turns on, then press F2 to open HP PC Hardware Diagnostics UEFI.

Can I run HP diagnostics if Windows won’t start?

Yes. The UEFI diagnostic environment runs before Windows.

How long does the HP Quick Test take?

It usually finishes in a few minutes, though deeper component tests can take longer.

What does an HP hardware failure ID mean?

It’s a code generated when a component fails a diagnostic test. Save it for support or repair.

Does a passed hardware test mean nothing is wrong?

Nope. It means the tested hardware didn’t fail that particular diagnostic. Software or an intermittent hardware problem may still need investigation.