Windows 8 and 8.1 Forums


I need to do a Refresh of Windows 8.1 - UEFI or not?????

  1. #1


    Hampshire UK
    Posts : 25
    Windows 8 Pro 64-bit

    I need to do a Refresh of Windows 8.1 - UEFI or not?????


    I'm having absolutely no joy trying to install KB2919442 and KB2919355 on my Windows 8.1 Pro 64bit PC, I just keep getting the message "The update is not applicable to your computer" so I guess I'm going to have to do a "Refresh" of Windows 8.1 to allow me to get the Windows 8.1 "Update". (I swear it shouldn't be this difficult)

    I've mounted the Windows 8.1 ISO and have a bootable DVD with version 6.3.9600.16384 of the setup.exe (I hope that will be the 8.1 and not 8 but knowing my luck it'll be the wrong version).

    When I put the DVD in my PC's DVD drive then restart the PC and go to my BIOS and select my PC to boot from DVD I get two options:-

    P4: Optiac DVD RW AD-7800H "OR"
    UEFI: P4: Optiac DVD RW AD-7800H

    Which should I choose, the motherboard is an Asus Maximus V Gene that uses the enhanced BIOS that is mouse operated, does that mean I need to the UEFI option?

      My System SpecsSystem Spec

  2. #2


    Hi

    All UEFI motherboards allow installing Windows in either UEFI mode or legacy ( CSM ) mode. So you should first check the boot mode of currently installed OS before refreshing. Please upload a "System Information Report" with next reply and i then i can tell you which option to choose.

    You can open the "System Information Utility" by entering "Msinfo32.exe" in the RUN dialogue. Then choose "File -->Save" to save the report and zip it. Attach the zipped report with next reply.
      My System SpecsSystem Spec

  3. #3


    Hampshire UK
    Posts : 25
    Windows 8 Pro 64-bit


    Hi Anshad and thanks for the quick reply.

    I ran Msinfo32.exe as you suggested and on the first page, System Summary, it says

    Item, BIOS MODE Value LEGACY.

    Can I assume that I need to "Refresh" Windows 8.1 in the non UEFI mode or do you need the file to be certain?
      My System SpecsSystem Spec

  4. #4


    Can I assume that I need to "Refresh" Windows 8.1 in the non UEFI mode or do you need the file to be certain?
    Yes, you are good to boot in the non-UEFI mode - P4: Optiac DVD RW AD-7800H
      My System SpecsSystem Spec

  5. #5


    Posts : 879
    Windows 10


    You can also select UEFI Boot Mode, but then you must delete all partitions to be able to install Windows on GPT partition style.

    Here is more info: Windows 7/8 setup: Installing using Legacy BIOS Boot Mode or UEFI Boot Mode.
      My System SpecsSystem Spec

I need to do a Refresh of Windows 8.1 - UEFI or not?????
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