can't turn on secure-boot on after 8.1 reinstall

biren

New Member
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15
I recently fresh-reinstalled win8.1 (through .iso provided by MS)
I had turned off the secure boot and turned on the legacy boot, while installing 8.1. (so as to be able to boot from CD drive)
now, I am unable to change it back.
if I do (that is, turn on uefi secure boot), the message returns saying this:
internal hard disk drive not found to resolve this issue, try to reseat the drive
no bootable device – strike f1 to retry boot, f2 enter setup, f5 enter psa.
so, I had to return to legacy boot with secure boot off.
it seems... because of this, the start up is taking quite long.
any suggestions? guidance?
regards
biren
 

My Computer

System One

  • OS
    win 8
That is because your reinstallation was installed in BIOS (legacy) mode.. You should of booted into UEFI and secure boot..
 

My Computer

System One

  • OS
    Windows 3.1 > Windows 10
    Computer type
    PC/Desktop
    System Manufacturer/Model
    Dell XPS 8700
    CPU
    I7
    Memory
    24 GB
yes i remember doing something like that too.. I think i finally got mine to install in Secure boot mode.. I never had to turn it off..

but i also remember a huge ordeal trying to get my secure boot back on.. i had to go into my bios and keep resetting "hardware defaults" and reset all the time in some specific order to finally get my secure boot to say "on" ..

hopefully you dont have to go through that..

Merry Christmas
 

My Computer

System One

  • OS
    Windows 8.1 (HOME not Pro) 64bit
    Computer type
    Laptop
    System Manufacturer/Model
    (So not very nice) Lenovo Y410P
    CPU
    i7 quad 2.4Gig
    Memory
    16G ram
    Graphics Card(s)
    nvidia 2gig 755m
    Hard Drives
    Samsung 840 Evo

    supercache2 m2. mini card.
    Antivirus
    Win Defender
No need to restore default UEFI configuration.


Turn Legacy Mode/BIOS OpRom Emulation OFF
Just having it on will slow down your boot time drastically.

Enable secure boot.

Insert DVD or make a USB Flash Drive Installer, and don't let it boot, instead open your boot menu and select [UEFI: CD-ROM Windows blah blah] instead of [CD-ROM: Windows blah blah].

format disk with GPT (GUID Partition Table)
 

My Computer

System One

  • OS
    Kernel 4.x
    Computer type
    PC/Desktop
    CPU
    i5 3570K
    Motherboard
    P8Z77-V LK
    Memory
    G.skill Ripjaw Z 2133MHz 9-11-10-28
    Graphics Card(s)
    GTX770 4GB Dual BIOS
    Sound Card
    Audigy 4 Pro
    Monitor(s) Displays
    32" SAMSUNG HDTV
    Screen Resolution
    1920x1080 progressive
    Hard Drives
    10TB total
    3 RAID arrays
    3 single disks
    PSU
    Corsair HX750
    Case
    Corsair R400
    Cooling
    Corsair H100
    Keyboard
    Logitech G510
    Mouse
    Logitech G5
    Internet Speed
    ~900mbps (~115MB/s) down, ~10mbps(~1.5MB/s) up
    Browser
    Firefox & Chromium
    Antivirus
    Common Sense
dear hydranix,

i have changed (after i wrote this post) the boot to "legacy mode" from previous "uefi secure boot off". the start up time has reduced quite a bit.

so now, one, should i keep using legacy mode or is it better to have 'uefi-secure boot on' booting?
two... in what you have suggested, are you asking me to reinstall windows? and if so, is there no other way to turn on secure boot on?

three... i am sorry to sound like a dirk... but i am feeling like one :) so... could you tell me what i need to do - stepwise?
i would be grateful.

thank you.
biren
 

My Computer

System One

  • OS
    win 8
- If i remember correctly, You do have to install windows with all settings set correct.. so yes probably you have to reinstall windows.. i will have to google and search around if there is some way to switch it on without re-installing windows but i kind of remember I had to reinstall..

i personally would take advantage of the technology that is allowed by your bios/motherboard/manufacture/microsoft and use it.. so get off legacy boot etc..

now, will you really see a difference in using your computer? definitely not.. so you would be just fine with legacy boot etc.. however, do you download illegal software and go to malicious websites (meaning questionable websites)?? if you do, go back and reinstall using secure boot and all the defense you can get..

otherwise, why would you be worried if you aren't doing questionable things.. I personally do all kinds of tweaking and try out all different kinds of programs.. so i do turn it on and hope that it helps prevent me from destroying my computer..


--taken straight from the technet Microsoft website.. (posted below) READ..
Secure Boot Overview

76 out of 127 rated this helpful - Rate this topic
Updated: May 5, 2014
Applies To: Windows 8, Windows 8.1, Windows Server 2012, Windows Server 2012 R2
Secure Boot is a security standard developed by members of the PC industry to help make sure that your PC boots using only software that is trusted by the PC manufacturer.

When the PC starts, the firmware checks the signature of each piece of boot software, including firmware drivers (Option ROMs) and the operating system. If the signatures are good, the PC boots, and the firmware gives control to the operating system.


**edit - Oh and ofcourse I do have secure boot on and you wouldn't believe how fast my boot time is.. so it does not affect boot time..


--as far as steps to reinstall ?

start here and use both..

1.Secure Boot isn't configured correctly: troubleshooting

2. http://www.eightforums.com/tutorials/17058-secure-boot-enable-disable-uefi.html (eight forums ofcourse!)
 

My Computer

System One

  • OS
    Windows 8.1 (HOME not Pro) 64bit
    Computer type
    Laptop
    System Manufacturer/Model
    (So not very nice) Lenovo Y410P
    CPU
    i7 quad 2.4Gig
    Memory
    16G ram
    Graphics Card(s)
    nvidia 2gig 755m
    Hard Drives
    Samsung 840 Evo

    supercache2 m2. mini card.
    Antivirus
    Win Defender
dear hydranix,

i have changed (after i wrote this post) the boot to "legacy mode" from previous "uefi secure boot off". the start up time has reduced quite a bit.

so now, one, should i keep using legacy mode or is it better to have 'uefi-secure boot on' booting?
two... in what you have suggested, are you asking me to reinstall windows? and if so, is there no other way to turn on secure boot on?

three... i am sorry to sound like a dirk... but i am feeling like one :) so... could you tell me what i need to do - stepwise?
i would be grateful.

thank you.
biren

Biren,

No, you don't have to reinstall Windows, however, it is far easier to reinstall, as not reinstalling will require a Linux live CD, a Windows install CD, command lines in Linux, command lines in Windows, and an acute understanding of the Windows boot loader/BCD.


You actually don't need secure boot. It does provide a tiny amount of security, but it is security mostly against targetted attacks.

You do however want to UEFI boot. It is incredibly faster than legacy.

Legacy requires an MBR-style disk, UEFI requires a GPT style disk. You can easily convert the disk at install time, but you will need to format the whole thing.

You must disable legacy mode, boot the install cd in UEFI mode (from the BIOS/UEFI boot menu), and procede to install after a disk format.

Press Shift + F10 ojce you UEFI boot the installation CD.

Enter the following, substitute '0' for the disk number of the target disk you want to install to. It will displayed after 'lis dis'.
Code:
C:\> diskpart
DiskPart> lis dis
DiskPart> sel dis 0
DiskPart> cle
DiskPart> conv dis
DiskPart> exit
C:\> exit
 

My Computer

System One

  • OS
    Kernel 4.x
    Computer type
    PC/Desktop
    CPU
    i5 3570K
    Motherboard
    P8Z77-V LK
    Memory
    G.skill Ripjaw Z 2133MHz 9-11-10-28
    Graphics Card(s)
    GTX770 4GB Dual BIOS
    Sound Card
    Audigy 4 Pro
    Monitor(s) Displays
    32" SAMSUNG HDTV
    Screen Resolution
    1920x1080 progressive
    Hard Drives
    10TB total
    3 RAID arrays
    3 single disks
    PSU
    Corsair HX750
    Case
    Corsair R400
    Cooling
    Corsair H100
    Keyboard
    Logitech G510
    Mouse
    Logitech G5
    Internet Speed
    ~900mbps (~115MB/s) down, ~10mbps(~1.5MB/s) up
    Browser
    Firefox & Chromium
    Antivirus
    Common Sense
Turn on UEFI and secure Boot - Reinstall windows..

Legacy boot and UEFI Boot are two different boot methods and use two different partition structures..

So it is one or the other.. period..

And you can't convert one installation to the other..
 

My Computer

System One

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