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Solved BIOS Boot Options Missing


bas11

New Member
Toronto

Posts
7
#1
Hi all,

I am running Win 8.1 Pro on an ASUS laptop N56VJ that originally had Win 8. It was updated to 8.1 quite some time ago. In preparation to do a clean install of Win 8.1 I noticed that the only boot option listed is the windows boot manager.

I've looked through other posts but do not see if this is critical to have the other boot options available. Is this normal to only have the windows boot manager shown? What steps should I take next?

I tried the F9 key to "optimize defaults" but nothing changed.

Attached are some pics of the BIOS and I also ran the disk management function.

Thanks in advance,
Bas
 

Attachments

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ASUS
    CPU
    Core i7
    Memory
    12Gb
    Graphics Card(s)
    Nvidia Geforce GT 635M

bas11

New Member
Toronto

Posts
7
#3
Hi Bat 1,

Thanks for your reply. I'm not sure if you noticed, there are no other boot options listed even when I turn off Secure Boot, Disable Fast Boot, and enable CSM & enable Launch PXE OpROM. See pic below.

Do I need to be concerned about this?

On the BIOS tab with Save & exit, there is an option to restore defaults, does anyone know if this could fix the boot options or do I need to create a new boot option.

Thanks,
Bas
 

Attachments

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ASUS
    CPU
    Core i7
    Memory
    12Gb
    Graphics Card(s)
    Nvidia Geforce GT 635M

KYHI

Well-Known Member
Pro User
Posts
2,717
#5
That is what it is called
I noticed that the only boot option listed is the windows boot manager.
Be it Bootmgr or Bootmgr.efi

that bootmgr will invoke the BCD Info
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model Number
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB

bas11

New Member
Toronto

Posts
7
#6
Thanks Bat 1 and KYHI. I will give it a go

Bas
 

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ASUS
    CPU
    Core i7
    Memory
    12Gb
    Graphics Card(s)
    Nvidia Geforce GT 635M

bas11

New Member
Toronto

Posts
7
#7
Hi All,

This is solved. Here is what I found;

If I disable Secure Boot and restart I can boot from a USB device

If I disable Secure Boot, enable CSM, enable PXE OpRom and reboot I am able to see the following boot options

1) Windows Boot Manager
2) P2 Matshitabd -CMB...
3) Atheros Boot Agent

See pic

Thanks for assistance with this !
 

Attachments

My Computer

System One

  • OS
    Windows 8.1
    Computer type
    Laptop
    System Manufacturer/Model Number
    ASUS
    CPU
    Core i7
    Memory
    12Gb
    Graphics Card(s)
    Nvidia Geforce GT 635M