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No Legacy boot from CD-DVD - UEFI and Secure Boot are OFF


glnz

Member
Member
Posts
36
#1

Just bought a Dell Optiplex 7010 Mini-Tower with Win 8 Pro 64-bit, 8 GB RAM, 500 GB hard drive and an Intel i5 3470 processor. Right now, it has Dell BIOS version A16.

It is normally in UEFI ON and Secure Boot ON, so that F12 on bootup (one-time boot options) does NOT normally show the CD-DVD as a boot option. OK - no problem.

However, if I reboot with F12 and select both UEFI OFF (meaning Legacy ON) and Secure Boot OFF and reboot, then F12 DOES show me the CD-DVD as a boot option, but if I actually try to boot up from a bootable CD, I get an error message.

I have practiced with two bootable CDs - a Knoppix and an Aomei Backupper, both made on earlier machines. Both these CDs work as boot-up CDs in my old XP machine, and the Aomei Backupper CD also worked in someone else's Win 7 Pro 64-bit machine.

What's wrong?

Again, please let me repeat that I am trying to boot from the CD-DVD AFTER I have turned OFF UEFI, turned ON Legacy and turned OFF Secure Boot.

Thanks.
 

My Computer

System One

  • OS
    Dual boot - Win 7 Pro 64-bit and Win 8.1 Pro 64-bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell Optiplex 7010 MT
    CPU
    Intel Core i5 3470 @ 3.2GHz
    Motherboard
    Dell 0GY6Y8 - what would the Intel number be? - Q77 chipset
    Memory
    16GB RAM DDR3 (Four x 4GB)
    Graphics Card(s)
    Intel HD Graphics (on the CPU)
    Sound Card
    Realtek High Definition Audio - and Intel Display Audio
    Monitor(s) Displays
    Dell E176FP - nothing fancy
    Screen Resolution
    1280 x 1024 @ 60 Hz
    Hard Drives
    Two 500GB WDC WD5000AAKX (SATA @ 6GB/sec)

    - External WD My Book 1110 USB device

    - Leftover Momentus XT not plugged in yet.
    PSU
    What means PSU? I'm at sea level
    Cooling
    Ice cubes
    Keyboard
    Noisy
    Mouse
    Basic from Dell
    Internet Speed
    Verizon DSL @ 7Mbps down and 780kbps up
    Browser
    Firefox only with lots of security drives my wife crazy
    Antivirus
    Win 7 Avast Free - Win 8 Windows Defender for now
    Other Info
    Also have an old but important XP SP3 machine still running - Optiplex 755 Desktop w 4GB RAM and 180 GB HD. Used the registry hack to get more updates through "XP Embedded" or "POS" so now the machine rings like a cash register and the CD drawer opens to give change.

genet

New Member
Guru
Posts
879
#2

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model Number
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

glnz

Member
Member
Posts
36
#3
Genet -

First, thanks so much for your 404.techsupport link. It says the order of the BIOS changes is important, and I'll try that when I get home. (However, I am not optimistic, as the F12 one-time boot option has something special that has NOT worked: Below the option to enter into the BIOS and the other F12 options, there are lines to change settings from "UEFI On + Secure Boot On" to either (1) "UEFI On + Secure Boot Off" or (2) "UEFI Off + Secure Boot Off". These make all the changes in the 404.techsupport link although I do not know the order. Anyway, I have had the no-boot-from-CD problem whether or not I use these special lines in F12 or instead go into BIOS myself and do the changes. But I will try the specific method and sequence in the 404.techsupport link tonight and let you know.)

Second, when you say Windows 8 will not start, that raises a completely different issue. If I get the CD-DVD working as a boot source, I will probably insert a blank hard drive into the PC and do a practice install of Win 7 Pro 64-bit SP1 by itself just to make sure the computer will work with it. If I am successful, my ultimate goal is to have dual boot between Win 7 and Win 8, both Pro 64-bit. But if Legacy BIOS settings stop Win 8, then how is dual boot 7 and 8 ever possible? There are many articles here and in 7Forums about dual-boot.

Thanks!
 

My Computer

System One

  • OS
    Dual boot - Win 7 Pro 64-bit and Win 8.1 Pro 64-bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell Optiplex 7010 MT
    CPU
    Intel Core i5 3470 @ 3.2GHz
    Motherboard
    Dell 0GY6Y8 - what would the Intel number be? - Q77 chipset
    Memory
    16GB RAM DDR3 (Four x 4GB)
    Graphics Card(s)
    Intel HD Graphics (on the CPU)
    Sound Card
    Realtek High Definition Audio - and Intel Display Audio
    Monitor(s) Displays
    Dell E176FP - nothing fancy
    Screen Resolution
    1280 x 1024 @ 60 Hz
    Hard Drives
    Two 500GB WDC WD5000AAKX (SATA @ 6GB/sec)

    - External WD My Book 1110 USB device

    - Leftover Momentus XT not plugged in yet.
    PSU
    What means PSU? I'm at sea level
    Cooling
    Ice cubes
    Keyboard
    Noisy
    Mouse
    Basic from Dell
    Internet Speed
    Verizon DSL @ 7Mbps down and 780kbps up
    Browser
    Firefox only with lots of security drives my wife crazy
    Antivirus
    Win 7 Avast Free - Win 8 Windows Defender for now
    Other Info
    Also have an old but important XP SP3 machine still running - Optiplex 755 Desktop w 4GB RAM and 180 GB HD. Used the registry hack to get more updates through "XP Embedded" or "POS" so now the machine rings like a cash register and the CD drawer opens to give change.

genet

New Member
Guru
Posts
879
#4
But if Legacy BIOS settings stop Win 8, then how is dual boot 7 and 8 ever possible?
You will need to install both operating systems in Legacy BIOS boot mode (installing using the MBR partition style) or in UEFI boot mode (installing using the GPT partition style).
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model Number
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

glnz

Member
Member
Posts
36
#5
Genet - sorry for delay but the real world impinged.

This is what happened:

I bought a second hard drive - blank. Opened the machine, disconnected the first hard drive, connected the new second one, booted up and FIRST installed Win 7 Pro 64-bit. The BIOS is:
UEFI - On
Secure Boot - Off
Enable Legacy ROMs - On

Got it fully updated, then made a blank partition and installed Win 8 Pro 64-bit in it.

Well, so far it's working, and I get the OS choice (in the modern Win 8 style) on bootup.

What do you think about the BIOS setting Enable Legacy ROMs ON?
 

My Computer

System One

  • OS
    Dual boot - Win 7 Pro 64-bit and Win 8.1 Pro 64-bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell Optiplex 7010 MT
    CPU
    Intel Core i5 3470 @ 3.2GHz
    Motherboard
    Dell 0GY6Y8 - what would the Intel number be? - Q77 chipset
    Memory
    16GB RAM DDR3 (Four x 4GB)
    Graphics Card(s)
    Intel HD Graphics (on the CPU)
    Sound Card
    Realtek High Definition Audio - and Intel Display Audio
    Monitor(s) Displays
    Dell E176FP - nothing fancy
    Screen Resolution
    1280 x 1024 @ 60 Hz
    Hard Drives
    Two 500GB WDC WD5000AAKX (SATA @ 6GB/sec)

    - External WD My Book 1110 USB device

    - Leftover Momentus XT not plugged in yet.
    PSU
    What means PSU? I'm at sea level
    Cooling
    Ice cubes
    Keyboard
    Noisy
    Mouse
    Basic from Dell
    Internet Speed
    Verizon DSL @ 7Mbps down and 780kbps up
    Browser
    Firefox only with lots of security drives my wife crazy
    Antivirus
    Win 7 Avast Free - Win 8 Windows Defender for now
    Other Info
    Also have an old but important XP SP3 machine still running - Optiplex 755 Desktop w 4GB RAM and 180 GB HD. Used the registry hack to get more updates through "XP Embedded" or "POS" so now the machine rings like a cash register and the CD drawer opens to give change.

genet

New Member
Guru
Posts
879
#6
What do you think about the BIOS setting Enable Legacy ROMs ON?
"Enable Legacy Option ROMs" - "During the UEFI boot mode, the Enable Legacy Option ROMs option will allow legacy option ROMs to load. This option is disabled by default. NOTE: Without this option, only UEFI option ROMs will load. This option is required for Legacy boot mode. This option is not allowed if Secure Boot is enabled."

If you are using the UEFI boot mode, you can disable or enable the Enable Legacy Option ROMs option. But if Windows 7 does not start when you disable the Enable Legacy Option ROMs option, then enable the Enable Legacy Option ROMs option.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model Number
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

glnz

Member
Member
Posts
36
#7
Genet - you nailed it. My Win 7 Pro 64-bit will not start with Enable Legacy Option ROMs off.

However, they were on when I first installed the Win 7. Would life have been better if I had kept them OFF when i first installed - in other words, if I had first installed with pure 100% UEFI?

On the other hand, I intend soon to try to set up XP Mode in the Win 7. If I had installed Win 7 with the Enable Legacy Option ROMs off, would that have prevented XP Mode?

Thanks.
 

My Computer

System One

  • OS
    Dual boot - Win 7 Pro 64-bit and Win 8.1 Pro 64-bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell Optiplex 7010 MT
    CPU
    Intel Core i5 3470 @ 3.2GHz
    Motherboard
    Dell 0GY6Y8 - what would the Intel number be? - Q77 chipset
    Memory
    16GB RAM DDR3 (Four x 4GB)
    Graphics Card(s)
    Intel HD Graphics (on the CPU)
    Sound Card
    Realtek High Definition Audio - and Intel Display Audio
    Monitor(s) Displays
    Dell E176FP - nothing fancy
    Screen Resolution
    1280 x 1024 @ 60 Hz
    Hard Drives
    Two 500GB WDC WD5000AAKX (SATA @ 6GB/sec)

    - External WD My Book 1110 USB device

    - Leftover Momentus XT not plugged in yet.
    PSU
    What means PSU? I'm at sea level
    Cooling
    Ice cubes
    Keyboard
    Noisy
    Mouse
    Basic from Dell
    Internet Speed
    Verizon DSL @ 7Mbps down and 780kbps up
    Browser
    Firefox only with lots of security drives my wife crazy
    Antivirus
    Win 7 Avast Free - Win 8 Windows Defender for now
    Other Info
    Also have an old but important XP SP3 machine still running - Optiplex 755 Desktop w 4GB RAM and 180 GB HD. Used the registry hack to get more updates through "XP Embedded" or "POS" so now the machine rings like a cash register and the CD drawer opens to give change.

genet

New Member
Guru
Posts
879
#8
I'm pretty sure that you will fail to install Windows 7, if you disable the Enable Legacy Option ROMs option (in UEFI boot mode). So, the current settings are ok.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model Number
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

glnz

Member
Member
Posts
36
#9

My Computer

System One

  • OS
    Dual boot - Win 7 Pro 64-bit and Win 8.1 Pro 64-bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell Optiplex 7010 MT
    CPU
    Intel Core i5 3470 @ 3.2GHz
    Motherboard
    Dell 0GY6Y8 - what would the Intel number be? - Q77 chipset
    Memory
    16GB RAM DDR3 (Four x 4GB)
    Graphics Card(s)
    Intel HD Graphics (on the CPU)
    Sound Card
    Realtek High Definition Audio - and Intel Display Audio
    Monitor(s) Displays
    Dell E176FP - nothing fancy
    Screen Resolution
    1280 x 1024 @ 60 Hz
    Hard Drives
    Two 500GB WDC WD5000AAKX (SATA @ 6GB/sec)

    - External WD My Book 1110 USB device

    - Leftover Momentus XT not plugged in yet.
    PSU
    What means PSU? I'm at sea level
    Cooling
    Ice cubes
    Keyboard
    Noisy
    Mouse
    Basic from Dell
    Internet Speed
    Verizon DSL @ 7Mbps down and 780kbps up
    Browser
    Firefox only with lots of security drives my wife crazy
    Antivirus
    Win 7 Avast Free - Win 8 Windows Defender for now
    Other Info
    Also have an old but important XP SP3 machine still running - Optiplex 755 Desktop w 4GB RAM and 180 GB HD. Used the registry hack to get more updates through "XP Embedded" or "POS" so now the machine rings like a cash register and the CD drawer opens to give change.

genet

New Member
Guru
Posts
879
#10
Not all computers have the same UEFI firmware settings.

On some computers, you must enable UEFI mode and Legacy BIOS mode, if you want to install Windows 7 in UEFI mode.
 

My Computer

System One

  • OS
    Windows 10
    Computer type
    Laptop
    System Manufacturer/Model Number
    Lenovo G580
    CPU
    Intel Core i5-3230M
    Memory
    8 GB
    Graphics Card(s)
    Intel HD Graphics 4000
    Browser
    Microsoft Edge
    Antivirus
    Windows Defender, standard user account
    Other Info
    UEFI firmware (BIOS) embedded Windows 8 product key.

allend66

New Member
Posts
13
#11
Gentlemen,

as I'm trawling for an answer before posting, I found this thread. I have the same problem where my Win8 HP pavilion won't let me boot from CD/DVD or USB.

I have gone into the BIOS and firstly disabled secureboot, then enabled legacy boot, then changed the boot order in both EUFI and legacy BIOS to put the DVD & USB before hard drive/OS boot, and yet my two bootable media (a disc regenerator usb stick, and cd) wont 'take' and the laptop defaults to loading win8. THe dvd drive spins up but after a pause continues to load win8.

I have tried the boot media on my legacy win 7 laptop and they both work fine, so the problem is with the booting win 8.

My BIOS has cd/dvd boot enable/disable (obviously set to enabled but tried both out of frustration)
network boot enable/disable ipv4/eufi (tried all combinations without success)
the only other option left to try is 'delete all certificates' -> defaults to secureboot off, which I don't want to do.

So in summary, I've tried everything and still can't use non-windows boot media.

suggestions please?
thnx
 

My Computer

System One

  • OS
    Windows 8.1 Core
    Computer type
    Laptop
    System Manufacturer/Model Number
    HP Pavilion 15-e073sa
    CPU
    AMD A4-5000M 1.5ghz
    Motherboard
    ?
    Memory
    8Gb DDR3
    Graphics Card(s)
    up to 1.98Gb shared
    Hard Drives
    750Gb SATA
    Browser
    ie10
    Antivirus
    MSE

glnz

Member
Member
Posts
36
#12

My Computer

System One

  • OS
    Dual boot - Win 7 Pro 64-bit and Win 8.1 Pro 64-bit
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell Optiplex 7010 MT
    CPU
    Intel Core i5 3470 @ 3.2GHz
    Motherboard
    Dell 0GY6Y8 - what would the Intel number be? - Q77 chipset
    Memory
    16GB RAM DDR3 (Four x 4GB)
    Graphics Card(s)
    Intel HD Graphics (on the CPU)
    Sound Card
    Realtek High Definition Audio - and Intel Display Audio
    Monitor(s) Displays
    Dell E176FP - nothing fancy
    Screen Resolution
    1280 x 1024 @ 60 Hz
    Hard Drives
    Two 500GB WDC WD5000AAKX (SATA @ 6GB/sec)

    - External WD My Book 1110 USB device

    - Leftover Momentus XT not plugged in yet.
    PSU
    What means PSU? I'm at sea level
    Cooling
    Ice cubes
    Keyboard
    Noisy
    Mouse
    Basic from Dell
    Internet Speed
    Verizon DSL @ 7Mbps down and 780kbps up
    Browser
    Firefox only with lots of security drives my wife crazy
    Antivirus
    Win 7 Avast Free - Win 8 Windows Defender for now
    Other Info
    Also have an old but important XP SP3 machine still running - Optiplex 755 Desktop w 4GB RAM and 180 GB HD. Used the registry hack to get more updates through "XP Embedded" or "POS" so now the machine rings like a cash register and the CD drawer opens to give change.

allend66

New Member
Posts
13
#13
Thanks glnz

I've finally got it sorted, but straight forward is wasn't!

I had to boot into BIOS and disable secure boot. Then enable legacy boot. Then enable cd/dvdrom boot. Then I had to change network boot (even though I wasn't booting from network) from EUFI IPv6/IPv4 to EUFI IPv4 which once enabled changed its name to IPv4 legacy, then I had to save changes, reboot pressing escape key and selecting F9 boot options then select inbuilt cd/dvd rom drive. Pain in the neck. They don't make 'em like they used to...
 

My Computer

System One

  • OS
    Windows 8.1 Core
    Computer type
    Laptop
    System Manufacturer/Model Number
    HP Pavilion 15-e073sa
    CPU
    AMD A4-5000M 1.5ghz
    Motherboard
    ?
    Memory
    8Gb DDR3
    Graphics Card(s)
    up to 1.98Gb shared
    Hard Drives
    750Gb SATA
    Browser
    ie10
    Antivirus
    MSE