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Intermittent machine freezing on boot

HP Recommended
HP Envy 750 RZ 610 RZ CTO Desktop
Microsoft Windows 10 (64-bit)

Hey Folks,


My PC is several months old...has been working fine. I recently updated the BIOS to F.22, as recommended by HP Support. Bios update went fine. I run hardware and software diagnotics, anti-virus, anti-malware on a weekly basis.


But last week, upon boot, I saw the HP logo (and spinner), my NUM-lock key lite turned on (as usual), then the system went dark. Turned monitor on/off (a Dell monitor). Hit spcbr, enter respornse. I saw that the NUM-lock key led was now off. I plugged and unplugged the keyboard (and old, but very reliable mechanical OmniKey, uses PS2 to USB connector). No change.


So...thought it was a boot glitch...power off, reboot...all was fine.


This morning...same thing (grrrr). Reboot, back on. But as a techie-kinda-guy, ran system diagnostics, hardware diagnostics, OS name it...all came up clean. ??? Running most uptodate version of Windows 10.


Video card (factory installed) Radeon RX 550 Series, latest software driver.


As a techie-kinda-guy (like you all) I want to rule out OR find out what is going on. So I'll throw it out to you folks?


Any thoughts...thx



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> My PC is several months old.


Presumably, the HP Warranty is still active, implying that HP will repair/replace your computer, if you file a claim against the warranty.


> I run hardware ... diagnoStics ... , on a weekly basis.


The built-in HP Hardware Diagnostics, or something else?


> Running most uptodate version of Windows 10.


Got a spare disk-drive, onto which you can "test-install" Windows, to see if it "glitches" on you?

Hint: disconnect from the Internet before installing, to prevent Windows Update from automatically taking literally hours to do its work.


> As a techie-kinda-guy (like you all) I want to rule out OR find out what is going on.


Strip-down the computer (just one stick of RAM, no add-in PCI/PCI-E cards), no "extra" USB devices, and boot it.

Check that the computer is not overheating -- all fans spinning properly ???


Or, file the warranty claim, and wait for HP to tell you what they have found, after you ship the computer to the nearest authorized HP Service Center.

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thanks for the quick reply and your suggestions.


I use the HP Hardware Diagnostics tools and system troubleshooting tools that are included in the system.


They all come up clean and no error codes.


Not sure if it's a Windows glitch, since it does not get past boot or load of Windows.


I'll get a temp monitor app and check that it is not to hot, although this problem occurs upon first boot in the morning, when the machine has been OFF all night, so it's not hot.





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