Windows 10: Confused UEFI settings

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  1.    26 Jan 2017 #11

    Sounds perfect!
      My ComputerSystem Spec

  2.    18 Feb 2017 #12

    Confused UEFI settings

    NavyLCDR said: View Post
    OK. Let's go with that plan. So what are you going to do when you want to boot to Windows 8? Go into BIOS setup and change it back to OS Type Win8? Then when you want to boot into Windows 10, go back into BIOS setup and change it back to OS Type other? And switch that setting every time you want to change the OS you boot into?

    Like I stated - the features of the interaction between the UEFI (bios) and the OS that are enabled by setting the OS Type to Windows 8 are the same features that are used by Windows 10. So, why not just leave it set for Win8 and leave it alone?
    I have now decided to install another OS other than Win8 or win 10 say for example Linux or Mac OS X also on a separate drive with all existing drives detached. Now what OS Type do I put in the UEFI settings - obviously it can't be Windows 8 and will have to be OTHER. I am then faced with having to go into UEFI settings everytime I want to boot to this new OS and change it back to OTHER if I am to boot. Is that right?
      My ComputerSystem Spec

  3.    18 Feb 2017 #13

    Change it to OTHER now and leave it there, regardless of which OS you are booting into.
      My ComputerSystem Spec

  4.    18 Feb 2017 #14

    A Bios settings varies between systems. A specific Bios may evolve over time and the settings change.

    Other OS is for a Non-Secure Boot OS. I have a parallel Win 7 10 system and Win 7 has to be designated as Other OS but still UEFI. I do not run Secure Boot because I would have to change settings for each boot, but you do not have this situation.

    There may also be a setting named CSM which stands for compatibility support module. If enabled it allows other than Secure Boot OSes but the settings work together. If one setting is or is not enabled, you may or may not see some options.

    Win 8 and 10 are the same was far as Secure Boot, when installed as an x64 UEFI version. If you install on a single drive the UEFI system partition will be placed and a Windows Boot Manager created. In your situation you should be able to select the Windows Boot Manager for a specific drive and have that OS boot.

    If you install without removing the older install, the boot files will be placed in the same EFI system partition, which should allow for a boot menu. You can also add a second Win 8/10 install by using Bootrec.exe.
      My ComputerSystem Spec

  5.    18 Feb 2017 #15

    Confused UEFI settings

    NavyLCDR said: View Post
    Change it to OTHER now and leave it there, regardless of which OS you are booting into.
    Right OK so I change it to Other and leave it so.
    So can you explain to me the purpose of having Windows 8 in OS Type - I mean does it provide an advantage to Win 8
    e.g. faster boot time or what?
      My ComputerSystem Spec

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