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UEFI BIOS Mode to Legacy

mahoutondji Posted messages 8 Status Member -  
phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   -
Hello everyone,
I need to reinstall an HP 20-2110nz All-in-One PC.
I have disabled secure boot and fast boot. When I go into the boot order, it is still impossible to enable legacy mode. When I press F5, it says: you may disable secure boot before you may configure this option. And when I press F9, I can't boot from USB or CD. After searching online, I was advised to update the BIOS, which I did without success. I am asking for your help, thank you in advance.

At startup, it displays:
Boot device not found
Please install an operating system on the hard drive
Hard drive - 3F0
F2 - System Diagnostics
For more information, please visit:
http://www.hp.com.techcenter/startup

Model Number: 20-2110nz
Product Number: G9A20EA#UUZ
Serial Number: 4CH4292C6Z
Software Version: 14WE2HRA605#SUUZ#DUUZ
PCBRAND #: HP

4 answers

  1.
    mahoutondji Posted messages 8 Status Member 1
     
    F9 displays this
    -uefi boot sources
    windows boot manager
    uefi ip v4
    uefi ip v6
    -legacy boot

    upon booting into windows boot manager, I end up on win 8 which was installed on the machine since purchase without being able to boot from the USB or the disk. I would like to install win 7 on the machine.
    1
    1. phil2k Posted messages 10841 Registration date   Status Contributor Last intervention   2 339
       
      Are you sure you have disabled secure boot?

      How did you create the key and the CD?
      0
      1. mahoutondji Posted messages 8 Status Member 1 > phil2k Posted messages 10841 Registration date   Status Contributor Last intervention  
         
        Yes, I entered the BIOS normally, then secure boot, then disabled secure boot and fast boot. Then when I go back to the boot order and try to disable legacy boot, I get the message: "you may disable secure boot before you may configure this option."
        0