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  1.    25 Feb 2016 #1
    Join Date : Oct 2014
    Posts : 60
    Windows 10 x64

    Stuck in UEFI after reset to default.


    Hi,

    After resetting UEFI to default values, I can't start WIndows because boot goes to UEFI.

    The story is this:

    I wanted to make a clean install of W10 and for that I had to make some changes in UEFI because it wouldn't allow me otherwise. But after the installation I see that I have some problems with the sleep and fast boot, not working well. So I went to UEFI and reset it to default, saved and exit. On boot, it goes to UEFI once and again. Windows doesn't load.

    So I have to do the same changes that I had to do for installing W10. Disable fast boot, etc. And then yes, I get to Windows, but keep having the same sleep and boot problems. Both work really bad in different ways.

    Does anybody know what is wrong?

    PS: I also did other changes, by the way. I couldn't install W10 because it said that my disk was GPT partition style, so I had to follow some instructions to change that, which wiped my disk and partitions completely and maybe I missed some step...

    Thanks in advance.
      My ComputerSystem Spec
  2.    25 Feb 2016 #2
    Join Date : Oct 2013
    NW Florida
    Posts : 9,686
    Windows 10 Pro and Windows 10 Pro Insider

    Please post a screenshot of disk management. Also, make sure your boot option is listed as Windows Boot Manager if you are installed in UEFI mode (which the screenshot above will show).
      My ComputersSystem Spec
  3.    26 Feb 2016 #3
    Join Date : Oct 2014
    Posts : 60
    Windows 10 x64
    Thread Starter

    Here you are.

    Click image for larger version. 

Name:	Imagen 005.png 
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      My ComputerSystem Spec
  4.    26 Feb 2016 #4
    Join Date : Oct 2013
    NW Florida
    Posts : 9,686
    Windows 10 Pro and Windows 10 Pro Insider

    You are not installed in UEFI mode, you are in legacy mode. Select your hard drive in the boot options in BIOS, you should not have a 'Windows Boot manager option'. Secure boot should be disabled and if you have a CSM, I don't know your options, but you need to set it to the option for Legacy.
      My ComputersSystem Spec
  5.    26 Feb 2016 #5
    Join Date : Dec 2015
    Posts : 6,405
    Windows10

    You could alternatively reinstall Windows 10 as a UEFI install by recreating your usb drive as a UEFI install by downloading iso and using rufus to create a gpt psrtition scheme for UEFI install. You would have to convedt hdd to gpt format.

    More hassle than just changing bios to use legacy bios, but gives more flexibility in future.
      My ComputerSystem Spec
  6.    26 Feb 2016 #6
    Join Date : Jul 2015
    Posts : 9,552
    Windows 10 Pro

    Quote Originally Posted by cereberus View Post
    but gives more flexibility in future.
    It depends upon the flexibility to do what the user is seeking. Do they want more and larger partitions? Then that would be true. Do they want flexibility to multi-boot things like Linux, Macrium Reflect ISOs and MiniTool Partition Wizard ISOs? Then MBR and Legacy booting is more flexible.
      My ComputerSystem Spec
  7.    26 Feb 2016 #7
    Join Date : Oct 2014
    Posts : 60
    Windows 10 x64
    Thread Starter

    I got lost, sounds like chinese to me all of that...

    This is what I have in the UEFI Boot:

    Click image for larger version. 

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    So, when I try to change the Boot configuration or when I try to reset everything to default values, I can't boot and get into this UEFI thing all the time.

    I don't see any "Legacy" thing anywhere.

    Thanks a lot.
      My ComputerSystem Spec
  8.    26 Feb 2016 #8
    Join Date : Jul 2014
    San Jose, California
    Posts : 2,196
    Ubuntu14.04x64 MintMate17x64 Win10Prox64

    CSM (Compatibility Support Module).
    If Enabled ===> Legacy MBR
    Disabled ====> UEFI
      My ComputerSystem Spec
  9.    26 Feb 2016 #9
    Join Date : Oct 2014
    Posts : 60
    Windows 10 x64
    Thread Starter

    Let's see. Since I couldn't install the W10 iso because my disk was GPT I followed these instructions found in a web site (Solucion el disco seleccionado tiene el estilo GPT. - Taringa!)

    diskpart
    list disk
    select disk <disk number>
    list partition
    clean
    list partition
    list disk

    And maybe there is some mistake because later I found these other instructions in a Microsoft site, and in this one there is different commands, such as "convert gpt" that I didn't do:

    Configuracion de Windows: Instalacion mediante el estilo de particion MBR o GPT

    diskpart
    list disk
    select disk <disk number>
    clean
    convert gpt
    exit
      My ComputerSystem Spec
  10.    26 Feb 2016 #10
    Join Date : Oct 2014
    Posts : 60
    Windows 10 x64
    Thread Starter

    ¿Could this be the reason?

    What I want is to have a sleep mode and boot that work well again, as they did before I touched all of that, as when I had my default W8.1 from factory untouched that worked great (the laptop is new from last summer).

    I want to have sleep mode, fast boot, etc, and have all UEFI values as in default mode, so that nobody can install Linux or anything else or boot from something else without my permission.

    Many thanks
      My ComputerSystem Spec

 
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