Question HD Sentinel accurate? Freezing computer. 100 perfomace 0 health

inconnaissable

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Jul 17, 2016
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Is HD Sentinel accurate? Or HDD health?
My sister's laptop is fine. It's not making any noise when you turn it on. It's working but it's been freezing a lot. It might be the Virus scan? Or windows update? She's also transferred a large amount of files before this happened. She said it was fine until it updated last night then it started freezing. But she says it has been slower before today even before the update.
Is it the hard drive? It's not making a noise but the health bar says 0 health and 100 performance?
Is this accurate? Can I still safely back up files? Is it possible that it's just a false report?
Please help. Thanks.