Windows 8 and 8.1 Forums


UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with

  1. #21


    Posts : 9
    Windows 8


    Quote Originally Posted by Avalon View Post
    Yeah, fair enough. When you put it like that, it makes sense to have a software controller for the whole system, and as we know, pretty much every software is breakable, one way or another.
    Question is, in what layer will the controller be? If they're moving away from BIOS, where exactly are they going to put it? I don't see a system partition being a very good idea, unless they put it somewhere really sneaky and use properly good encryption techniques, right?
    Sony used "properly good encryption techniques", but human nature being qhat it is, for most of the life span of the PS3, the password was weak.

    As an example of using the system partition, Apple currently create these partitions, but does not use them except for updates. Case in point, my 2011 MacBook Pro came to me with OSX 10.6, but with a free upgrade to Lion. After installing Lion, nad updating, I gained a new feature. I can now reinstall Lion from Apple's servers online, without a disk. They accomplished this by some UEFI extensions in the EFI partition, that they do not use for Booting. By placing the update in this hidden partition, when the system rebooted, it automatically installed the correct software.

    Apples OSX comes with the Bless utility, which basically points the Uefi Bios at the Boot loader. Using this, and UEFI, we are able to extend the Apple supplied UEFI Bios with new utilities, and a command line. You can even use the Bless command to make it the default.

    Windows comes with the BCD family of utilities, which can load other OS's. Look online for examples of using the microsoft boot loader for Linux or Hackintoshes. Things change, but they always stay the same. The tools change, but the functions usually remain. When they don't, others create new tools to do the job.

    The EFI partition is defined as a system standard, that will not change! (I have browsed the Uefi Docs slightly) This is for compatibility, and standardisation reasons. Any implementation that encrypts the EFI partition must make itself available to ALL systems, or risk being left behind at the turn of the OS market. What happens when Windows Next isn't recognized by the UEFI? You can't install it, if the partition is encrypted. This would force novice users to update the uefi, and possibly corrupt their system. Not a good user experience.

    A manufacturer would rather us geeks tweaked these things, because we are the minority. ( Anything less than 10-15 percent of the market is really not worth worrying about, in the production environment. This changes drastically in the beta, and alpha environment.) Manufacturers produce as few Firmware updates as possible currently. I don't forsee that changing anytime soon.

    Dragorth.

      My System SpecsSystem Spec

  2. #22


    Appelhülsen Germany
    Posts : 189
    Windows 7 and Windows Developer Dual efi boot


    Thank you for this Arkhi
    I needed to reinstall Windows 8 and thought it would be no great problem if I did my Windows 7 at the same time. I installed Windows 7 first and then went on to install Windows 8 as dual boot everything worked fine until I tried to replay a Windows 7 image back. I should have guessed it is not possible only images made on a UEFI system can be played back.
    I am not ready at the moment to install both systems from scratch so I reset everything back to normal.
    I think others may be interested in hearing about the "old" images not being usable.
    I also have a couple of questions.
    When UEFI is in use for one drive the Boot Manager is located in the BIOS. How does this work if I want to do a second OS install on its own HDD? If I dual boot it is clear that both OS's will run over one Boot Manager, what happens when I do not want to dual boot? do I then get two Boot Managers in the BIOS?
    How do I clear these boot managers? is a simple BIOS reset enough?

    Pooch

    OK cancel my last I have now gone ahead and done it and all my questions have been answered
    Last edited by Pooch; 30 Oct 2011 at 14:04.
      My System SpecsSystem Spec

  3. #23


    Posts : 1
    Windows 7


    Followed this guide, I try forcing UEFI it doesn't run in UEFI could the reason be im trying to use the windows 8 All in one (which also has 32bit)? hardrive is in GPT the Fat32 no clue why the thing doesn't like to boot UEFI (even though it says UEFI: USB USB HARDRIVE) it goes to legacy even when I force UEFI boot only it doesn't work and says "insert boot media..."
      My System SpecsSystem Spec


  4. #24


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Quote Originally Posted by Alex Finlay View Post
    Followed this guide, I try forcing UEFI it doesn't run in UEFI could the reason be im trying to use the windows 8 All in one (which also has 32bit)? hardrive is in GPT the Fat32 no clue why the thing doesn't like to boot UEFI (even though it says UEFI: USB USB HARDRIVE) it goes to legacy even when I force UEFI boot only it doesn't work and says "insert boot media..."
    There is no legal all in one DVD.
      My System SpecsSystem Spec

  5. #25


    Posts : 1
    Windows 7 Home Premium / Windows 8 PRO WMC


    Hi guys,
    could you help?
    Bought a Vaio SVS15115FBB (Brazil), and wanna do a clean install of windows 8. But when a reboot with the installation DVD it says that it cannot be installed on that partition (the main and only drive is a GPT drive).
    I´ve cleaned all partitions, reboot from the DVD again, but the installer did not create the partitions correctly (?!), yes, I´m booting with UEFI turned on.
    Since I do not have a +3TB drive, can I clean all the partitions with a linux DVD, convert the disk to MBR and install Windows 8?
    Any sugestions?

    Thanks
      My System SpecsSystem Spec

  6. #26


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Quote Originally Posted by rtavar View Post
    Hi guys,
    could you help?
    Bought a Vaio SVS15115FBB (Brazil), and wanna do a clean install of windows 8. But when a reboot with the installation DVD it says that it cannot be installed on that partition (the main and only drive is a GPT drive).
    I´ve cleaned all partitions, reboot from the DVD again, but the installer did not create the partitions correctly (?!), yes, I´m booting with UEFI turned on.
    Since I do not have a +3TB drive, can I clean all the partitions with a linux DVD, convert the disk to MBR and install Windows 8?
    Any sugestions?

    Thanks
    Welcome to EightForums.

    Are boot from the uEFI DVD Drive.

    Click image for larger version
      My System SpecsSystem Spec

  7. #27


    Posts : 21,816
    64-bit Windows 10


    Tutorial has been updated and made easier to follow along.
      My System SpecsSystem Spec

  8. #28


    San Diego, CA
    Posts : 178
    Windows 10 Tech Preview 10041 x64


    Thanks for the awesome tutorial. Recently got my first UEFI based computer and was stymied as to why Windows wouldn't install after I wiped out the hard drive. This helped a ton.
      My System SpecsSystem Spec

  9. #29


    Posts : 52
    Windows 8 Pro


    hi,

    what is the difference with this install and a normal installation. recently i got my windows 8 dvd (before i just used usb). i just put it on my pc and let it install normal, is this the right way?

    how can i know if i am doing a uefi install or not ??
      My System SpecsSystem Spec

  10. #30


    Posts : 5,592
    ME, XP,Vista,Win7,Win8,Win8.1


    Quote Originally Posted by qwetymikey View Post
    hi,

    what is the difference with this install and a normal installation. recently i got my windows 8 dvd (before i just used usb). i just put it on my pc and let it install normal, is this the right way?

    how can i know if i am doing a uefi install or not ??
    Your post
    Clean Install - Windows 8

    Quote Originally Posted by qwetymikey
    HI, may I ask, why when I deleted the partition and reformat, it created 4 partitions, called as recovery, msr, system and primary?

    For more info on uEFI:
    Windows and GPT FAQ
    Unified Extensible Firmware Interface - Wikipedia, the free encyclopedia
    UEFI and Windows
    Technical Note: UEFI BIOS vs. Legacy BIOS - YouTube
    Sample: Configure UEFI/GPT-Based Hard Drive Partitions by Using Windows PE and DiskPart
      My System SpecsSystem Spec

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UEFI (Unified Extensible Firmware Interface) - Install Windows 8 with

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