1.    12 Aug 2017 #1
    Join Date : Sep 2015
    Posts : 291
    Windows 10

    Cannot boot from USB or DVD and cannot access UEFI


    HP HP Pavilion Desktop PC 570-pOXX. Windows 10 Home (X64) Version 1703 (build 15063.540)

    I've already posted about the usb part Will Win 10 pc boot from usb? - Windows 10 Forums but I'd like to expand the scope.

    In brief, no combination of key presses at bootup will bring a menu to boot from x or open UEFI. The only menu I can raise is the HP troubleshooter (F2 and F9 alternately). This does have a boot menu but it does not list the DVD or the USB bootable drive. The choices are a bit cryptic but any choice leads to a regular boot to hard drive.

    So I am considering reinstalling Win 10 and getting rid of HP's addons. But before that
    I'd really like to fix the problem. (I was thinking of buying a different pc when one of my other problems, not being able to burn to DVD, suddenly solved itself. My Win10 does not have dvr burner Solved - Page 3 - Windows 10 Forums.)
      My ComputerSystem Spec
  2.    12 Aug 2017 #2
    Join Date : Aug 2016
    S/E England
    Posts : 4,488
    10 Home x64 (1709) (10 Pro on 2nd pc)

    The first thing to check would be do you have fast startup enabled? You may not get the option to open UEFI during a fast startup, only with a full start up from cold. Either disable fast startup then shut down and start up, or select 'Restart' on the Start menu's power button which will also perform a cold boot.

    My older BIOS based system skips its 'enter BIOS/choose boot device' screen when it does a fast startup. I would expect a UEFI system to do the same.
      My ComputersSystem Spec
  3.    12 Aug 2017 #3
    Join Date : Jul 2015
    Posts : 9,369
    Windows 10 Pro

    From A Command Prompt (Admin) or Powershell (Admin) run:

    shutdown /r /f /t 00
      My ComputerSystem Spec
  4.    13 Aug 2017 #4
    Join Date : Sep 2015
    Posts : 291
    Windows 10
    Thread Starter

    Bree: I turned off fast startup long ago.

    NavyLCDR: Good to know but has no effect on the boot process. Still can't get menu.
      My ComputerSystem Spec
  5.    13 Aug 2017 #5

    Hi there

    try turning off Secure boot and if you can get into BIOS enable legacy boot then try again.

    Cheers
    jimbo
      My ComputerSystem Spec
  6.    13 Aug 2017 #6

    Hi there @tcebob

    try turning off Secure boot and if you can get into BIOS enable legacy boot then try again.

    IMO for things like home computers (not locked down corporate laptops) secure boot is an abomination . Simply get rid of it. You can of course continue to boot from UEFI devices.

    Cheers
    jimbo
      My ComputerSystem Spec
  7.    13 Aug 2017 #7
    Join Date : Sep 2015
    Posts : 291
    Windows 10
    Thread Starter

    Great idea, jimbo. But how can I do that? Looked up in google and the advice I found was to open Advanced Startup in Settings and click restart now. I'm gonna do that (again, just to be sure) but I don't think it's going to work . . .
    Last edited by tcebob; 13 Aug 2017 at 15:45.
      My ComputerSystem Spec
  8.    13 Aug 2017 #8
    Join Date : Sep 2015
    Posts : 291
    Windows 10
    Thread Starter

    Attachment 148722Attachment 148723Attachment 148724Attachment 148725

    Here are some snapshots of the screens seen after Settings/Recovery/Advanced Startup (which worked). There is an option to open UEFI firmware setting. If I follow this far enough I get Boot Order, which includes usb and dvd. I believe it's possible to change the order but didn't dare. Perhaps that means that if the dvd is first it will use it and if no dvd disk is present it will try the next (which would be Hard Drive). But I don't know and, frankly, I'm too chicken to try it. In order to use this it demands that secure boot be disabled. But Secure boot warns in bright white on red that it only applies to Windows 8 and if it doesn't work the computer won't boot. Can I do this on Win 10?
      My ComputerSystem Spec
  9.    14 Aug 2017 #9
    Join Date : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 10,413
    Windows 10 IoT

    Usually, the BIOS will check each device in the list of boot devices. Starting with the first top most item. Then move on to the next item if the previous one was not bootable or not preset. If the optical drive is first in the list, but doesn't have a disk in it, its skipped and the next device in the list is checked. If no bootable device is found you usually get "Missing boot device" or similar message with a press this key to enter setup. The key you press varies by manufacturer but will be specifically listed in the message. That's the way its always worked for me.
      My ComputerSystem Spec
  10.    14 Aug 2017 #10
    Join Date : Sep 2015
    Posts : 291
    Windows 10
    Thread Starter

    That's what I thought. Thanks for the affirmation.
      My ComputerSystem Spec

 


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