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  1.    07 Jan 2016 #1
    Join Date : Jan 2016
    Posts : 7
    windows 10

    keystroke(s) to enter BIOS/Boot Manager


    Hallo
    first post here; I have a Linx 8 tablet running Windows 10, and despite several hours of web/forum trawling I cannot access my BIOS settings to view my boot manager, either through the Settings/Restart method, or in Safe Mode. I can get to a screen that lets me choose between either UEFI Settings or Boot Manager (by holding the power and the volume up buttons together at start up). Selecting the UEFI option takes me to the expected prompt, but choosing Boot Manager just starts Windows as normal. I simply cannot access my Boot Manager; I have disabled Fast Boot.

    AFAIK, I have tried all possible options from within Windows 10, is there a keystroke that will allow me to do this?

    Thanks
    Brendan
      My ComputerSystem Spec
  2.    08 Jan 2016 #2
    Join Date : Oct 2013
    NW Florida
    Posts : 9,253
    Windows 10 Enterprise and Pro/Windows 7 Enterprise/Linux Mint

    See if this will help you UEFI Firmware Settings - Boot to from inside Windows 10 - Windows 10 Forums and welcome to Tenforums
      My ComputersSystem Spec
  3.    08 Jan 2016 #3
    Join Date : Jan 2016
    Posts : 7
    windows 10
    Thread Starter

    Thank you. Am I being n00bish perhaps? I can't access boot manager in the 'conventional' way because my bios is UEFI?

    Your link looks like it will help answer these questions.
      My ComputerSystem Spec
  4.    08 Jan 2016 #4
    Join Date : Oct 2013
    NW Florida
    Posts : 9,253
    Windows 10 Enterprise and Pro/Windows 7 Enterprise/Linux Mint

    I don't think you are being Noobish. I am completely unfamiliar with your tablet model and have no idea how to boot into bios other than the link I posted. I would want to also. Perhaps if you downloaded the Manual for your tablet it would show you how. I wouldn't think the reason for your problem is UEFI mode.
      My ComputersSystem Spec
  5.    08 Jan 2016 #5
    Join Date : Jan 2016
    Posts : 7
    windows 10
    Thread Starter

    I'm afraid I don't have the motherboard specs for this tablet; it just appears that the Boot Manager link is either broken or disabled. I can access the EFI settings but it presents me with something resembling a Command Prompt, and I'm not too sure about making any changes there. I found this link also, for anyone else watching.

    What You Need to Know About Using UEFI Instead of the BIOS

    Using the powerButton+volumeUp method (or other methods within Windows 10), I am presented with the following

    Click image for larger version. 

Name:	DSC_0619.jpg 
Views:	1 
Size:	591.0 KB 
ID:	57625:

    Choosing Boot Manager I get:
    Click image for larger version. 

Name:	DSC_0620.jpg 
Views:	1 
Size:	740.7 KB 
ID:	57626

    If I select Windows Boot Manager, Windows 10 just starts as normal, no boot options, if I select Internal EFI Shell I get:

    Click image for larger version. 

Name:	DSC_0621.jpg 
Views:	1 
Size:	600.9 KB 
ID:	57627

    Which I am unfamiliar with.

    Anyway thanks again, research continues.
    Brendan
      My ComputerSystem Spec
  6.    08 Jan 2016 #6
    Join Date : Jul 2015
    Posts : 3,655
    10 Pro

    The windows boot manager will take you straight into Windows if the is only one boot menu entry.
    The final picture is the EFI shell.

    Are you trying to get to this Advanced Startup Options - Boot to in Windows 10 - Windows 10 Forums ?

    Apart from that you might be seeing all you can change. I'm running Windows 10 on MacBook which boots through UEFI and there are precisely zero pre-boot options for me to change. I can either boot Windows or not - I can't change boot order or set any flags to turn secure boot or processor features off or on or anything at all.
      My ComputerSystem Spec
  7.    08 Jan 2016 #7
    Join Date : Jan 2016
    Posts : 7
    windows 10
    Thread Starter

    @lx0
    I am beginning to suspect that this might be the case for me too. I cant understand why a Boot Manager link is provided in Advanced Start Up if these options are unavailable. I connected a USB drive with Fedora 23, and chose Boot from USB in Advanced settings and the dialog says, cannot boot from USB no USB boot option exists, use your boot manager to change settings. I press Windows Boot Manager and Boom, back to desktop

    Sigh.
      My ComputerSystem Spec
  8.    08 Jan 2016 #8
    Join Date : Oct 2013
    NW Florida
    Posts : 9,253
    Windows 10 Enterprise and Pro/Windows 7 Enterprise/Linux Mint

    Quote Originally Posted by brendanmcclosk View Post
    @lx0
    I am beginning to suspect that this might be the case for me too. I cant understand why a Boot Manager link is provided in Advanced Start Up if these options are unavailable. I connected a USB drive with Fedora 23, and chose Boot from USB in Advanced settings and the dialog says, cannot boot from USB no USB boot option exists, use your boot manager to change settings. I press Windows Boot Manager and Boom, back to desktop

    Sigh.
    If you only have 1 OS installed and are in UEFI mode, you only have 1 boot manager. If you select Boot Manager it will take you to your OS. If you have a UEFI created USB, you should have 2 boot managers and should see a choice. If you have an MBR created USB, it does not have a Windows Boot manager. You would have to disable secure boot and fast startup and probably the CSM settings, if you have that.
      My ComputersSystem Spec
  9.    08 Jan 2016 #9
    Join Date : Oct 2015
    Posts : 1,976
    Windows 10 Pro X64

    Hi,

    if I select Internal EFI Shell I get:
    That looks like a programming environment to me.

    Cheers,
      My ComputersSystem Spec
  10.    08 Jan 2016 #10
    Join Date : Jan 2016
    Posts : 7
    windows 10
    Thread Starter

    @essenbe

    Ok, that is very clear now. I believe the version of the Fedora installer I have is EFI (not UEFI); when I connect it to my PC it shows up as an EFI drive. On my tablet, I have disabled Fast Start Up and Secure Boot. I believe it may be possible to revert to Legacy Mode (according to the link I gave in #5).

    FWIW I am already running Fedora 23 on my main PC (dual boot with Win7). I'm just experimenting with the possibility of running Fedora on my tablet too. Not a crucial problem, and I'm also aware of the likelihood of bricking my tablet, so I will proceed with much caution.

    Many thanks everyone, and thanks for the warm and uncritical welcome.

    Brendan
      My ComputerSystem Spec

 
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