Windows 8 and 8.1 Forums


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

  1. #40


    Posts : 5
    Windows 8 x64 Pro


    Quote Originally Posted by Brink View Post
    Hello m1midan0s, and welcome to Eight Forums.

    The tutorial below can help show you how to create a bootable Windows 8 installation USB for UEFI.

    UEFI Bootable USB Flash Drive - Create in Windows


    Once created, you could use the tutorial on the first page of this thread to install with UEFI.

    Hope this helps,
    Shawn
    Al right, thnx! I just ordered an 8gb USB stick (since I only had a 2gb lying around here) and I'll try again tomorrow.

    Changed my hardware today and Windows 8 couldn't boot. After resetting windows 8 to factory settings it asked again to activate, which now it can't do, because according to windows my "license key has been activated more than the maximum". What's that all about?

    Anyway, I'll be happy if I manage to get w8 installed with UEFI and afterwards I guess I'll give microsoft a call about that deal.

      My System SpecsSystem Spec

  2. #41


    Posts : 21,825
    64-bit Windows 10


    Since it's a hardware change, you may need to do a phone activation.
      My System SpecsSystem Spec

  3. #42


    Posts : 5
    Windows 8 x64 Pro


    Quote Originally Posted by Brink View Post
    Since it's a hardware change, you may need to do a phone activation.
    Just wanted to say thank you for everyone's help here at the forum. I had contact multiple times with the customer service, but they didn't even know what UEFI was.

    Then, after realizing I could just run the Upgrade Assistant again to create the ESD-folder, I created the ISO with UEFI-support, did a clean install with the windows 8 upgrade CD and activated through the phone as Brink suggested.

    Now I have Windows 8 booting lightning fast (7-10 seconds) from my Crucial M4 SSD with AHCI and UEFI enabled! Just like I wanted.

    Thanks!
      My System SpecsSystem Spec

  4. #43


    Posts : 21,825
    64-bit Windows 10


    You're most welcome m1midan0s. Glad we could help.
      My System SpecsSystem Spec


  5. #44


    Posts : 4
    Intel(R) Core(TM) i5-3330 CPU @ 3.00GHz


    I'm at a loss here.

    I'm in UEFI boot mode, secure mode off.

    I've deleted all partitions back in LEGACY MODE when I installing Windows 8 PRO x64.

    But, when I tried to do a clean install with UEFI, I get:

    "No boot device available.
    SATA 0: Installed
    SATA 1: Installed
    SATA 2: None
    SATA 3: None
    Strike the F1 key to retry boot, F2 to run the setup utility"


    It seems that UEFI doesn't recognize my USB flash drive.


    But, when I do Legacy BIOS mode, it recognizes my USB drive as "UEFI: SanDisk Cruzer".

    Any thoughts?
      My System SpecsSystem Spec

  6. #45


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


    Quote Originally Posted by dinkoh View Post
    I'm at a loss here.

    I'm in UEFI boot mode, secure mode off.

    I've deleted all partitions back in LEGACY MODE when I installing Windows 8 PRO x64.

    But, when I tried to do a clean install with UEFI, I get:

    "No boot device available.
    SATA 0: Installed
    SATA 1: Installed
    SATA 2: None
    SATA 3: None
    Strike the F1 key to retry boot, F2 to run the setup utility"


    It seems that UEFI doesn't recognize my USB flash drive.


    But, when I do Legacy BIOS mode, it recognizes my USB drive as "UEFI: SanDisk Cruzer".

    Any thoughts?
    Is the USB drive formatted to FAT32?

    UEFI Bootable USB Flash Drive - Create in Windows
      My System SpecsSystem Spec

  7. #46


    Posts : 5
    Windows 8 x64 Pro


    I have one more question:

    I installed Windows 8 in UEFI mode, but with an older BIOS without full Windows 8 support. ATM I didn't know all the UEFI settings, so I unknowingly installed Windows 8 in IDE-mode and with CSM enabled (which AsRock calls "Normal boot").

    At that moment, Windows 8 booted in about 45 seconds. Which was slower than my "old" system with an Core 2 Duo E6750 CPU.

    After I installed Windows 8, I updated the BIOS to version 2.00, which has full windows 8 fast boot support, and set the boot mode to "Ultra Fast" (which means CSM is disabled) and found that the SSD was running in IDE mode, so I changed it to AHCI (and made the necessary registry tweaks to be able to boot to windows).

    At this point, Windows 8 boots in 23 seconds. Which is pretty great, but not what I expected, as AsRock claims the A75M-motherboards with UEFI support should be able to boot in less than 10 seconds.

    Now, my question is: can I gain any more speed in boottime if I reinstall Windows 8 again with all these settings set beforehand?

    My system specs can be found in my profile.
      My System SpecsSystem Spec

  8. #47


    Posts : 21,825
    64-bit Windows 10


    m1midan0s,

    I can't use the "Ultra Fast" option since I don't have a compatible graphics card, but it's still the same on my ASRock X79 Extreme11 mobo when I installed how you have it set now beforehand.

    I'm thinking that claim is for if you use "Fast Startup" in Windows 8 with UEFI and use the hybrid boot/shutdown feature.

    This subject is all for a new thread to keep this one on topic though.
      My System SpecsSystem Spec

  9. #48


    Posts : 4
    Intel(R) Core(TM) i5-3330 CPU @ 3.00GHz


    Quote Originally Posted by theog View Post
    Quote Originally Posted by dinkoh View Post
    I'm at a loss here.

    I'm in UEFI boot mode, secure mode off.

    I've deleted all partitions back in LEGACY MODE when I installing Windows 8 PRO x64.

    But, when I tried to do a clean install with UEFI, I get:

    "No boot device available.
    SATA 0: Installed
    SATA 1: Installed
    SATA 2: None
    SATA 3: None
    Strike the F1 key to retry boot, F2 to run the setup utility"


    It seems that UEFI doesn't recognize my USB flash drive.


    But, when I do Legacy BIOS mode, it recognizes my USB drive as "UEFI: SanDisk Cruzer".

    Any thoughts?
    Is the USB drive formatted to FAT32?

    UEFI Bootable USB Flash Drive - Create in Windows

    Yeah, it definitely is. I followed those instructions above (twice). Does it confirm it when I do boot using Legacy mode, it does say UEFI: Sandisk Cruzer? But it doesn't recognize it when I boot in UEFI BIOS mode.

    I'm not sure why it doesn't recognize my USB when booting.
      My System SpecsSystem Spec

  10. #49


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


    Quote Originally Posted by dinkoh View Post
    Quote Originally Posted by theog View Post
    Quote Originally Posted by dinkoh View Post
    I'm at a loss here.

    I'm in UEFI boot mode, secure mode off.

    I've deleted all partitions back in LEGACY MODE when I installing Windows 8 PRO x64.

    But, when I tried to do a clean install with UEFI, I get:

    "No boot device available.
    SATA 0: Installed
    SATA 1: Installed
    SATA 2: None
    SATA 3: None
    Strike the F1 key to retry boot, F2 to run the setup utility"


    It seems that UEFI doesn't recognize my USB flash drive.


    But, when I do Legacy BIOS mode, it recognizes my USB drive as "UEFI: SanDisk Cruzer".

    Any thoughts?
    Is the USB drive formatted to FAT32?

    UEFI Bootable USB Flash Drive - Create in Windows

    Yeah, it definitely is. I followed those instructions above (twice). Does it confirm it when I do boot using Legacy mode, it does say UEFI: Sandisk Cruzer? But it doesn't recognize it when I boot in UEFI BIOS mode.

    I'm not sure why it doesn't recognize my USB when booting.
    Do you have Secure Boot DISABLED?
      My System SpecsSystem Spec

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

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