Resolved Question

BIOS-Cannot access

HP Pavilion P20 AIO Desktop, Win10 Home. Am unable to get into BIOS;have tried every usual way(Esc, Del,F12,F8,F6,F2,F1) several times each key. Went to HP P20 site, followed exactly what they said, still didn't work. I've tried to boot with: gParted, other Linux disks, Win10Disks, however, each time it opens with the lock screen page. BTW-I'm wanting to access BIOS to make sure 1st boot is DVD Drive, 2nd is HDD. Also, as the is an all-in-one computer, taking it apart and replacing hard drive is NOT an option. I would sure appreciate any suggestions. Thank you.

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Clarification Request
Look for the docs again for other keys.

Here the HP uses F9 to select the boot drive. But what is this about a lock screen. If it's locked, the PC may be locked out of getting to the BIOS so you often have to unlock it, let Windows or such boot and then get to the BIOS via W10.

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Clarification Request
usb or ps2 keyboard?

maybe it's not reading the keys at all.

Best Answer

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Re: BIOS
https://support.hp.com/ph-en/document/bph07110 says that for HP desktop PC's it's F10 (which you don't mention). But an AOI isn't exactly the same as a desktop (although you post in the desktop forum).
- What key does your user manual say it is?
- What key does HP Customer service say it is?
- Do you press it repeatedly and at the right moment?

I assume the "lock screen" you mention is the Windows 10 lock screen, meaning that it boots from the hard disk.

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