HP Laptop turns off without warning

[JMap]

I have some HP Probooks 440 G4 that are about 1 year 8 months old. Recently, they started shutting down unexpectedly and without warning. They have been working well before then. The restart does not follow any pattern and can happen anytime, after a short use or sometime after even 6 hrs use. The restart happens when the adapter is connected and also when on battery. The batteries are still good and they maintain charge. The laptops are not overheating and the heat vents are clean. The laptops are using the original chargers. The issue is not logged in windows 10. I have tried a reinstall of the os and drivers but the problem persisits. I have run the HP hardware diagnostics UEFI, and all the components passed the tests.

We bought the laptops together as a batch of 10, and currently I have 2 with this problem.

Please assist..

[soccer_dan]

i would test reimaging the laptops to make sure this is not a s/w issue (assuming the bios is up to date also)

i would first, however, run HP Image Assistant and let it update everything it suggests

if problem persists, use the HP CLoud Recovery Client ( https://support.hp.com/us-en/document/c05115630 ) to download the OEM image for that system and reimage