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  1.    12 May 2017 #51
    Join Date : Nov 2015
    Posts : 385
    WINDOWS 10 Pro x64 builds 17040.1000, 16299.64

    Quote Originally Posted by Kari View Post
    @waltc, you cannot clean install from mounted ISO. Only in-place upgrade is possible.

    To clean install you have to boot PC from install media (USB / DVD), alternatively boot from WinPE media and apply install.wim (or install.esd) with DISM, or boot from WinPE media and launch Windows setup from a hard disk partition (or USB / DVD).
    And what happens if the third option is chosen? is not a clean install?:
    Click image for larger version. 

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      My ComputerSystem Spec
  2.    12 May 2017 #52
    Join Date : Mar 2017
    Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)

    All Macrium Reflect users:

    Check to make sure your USB recovery drive still boots from UEFI. I have a Macrium Home rescue USB drive and a Pro rescue USB drive and they both failed to boot from UEFI (but they worked on 16188). So, I tried recreating them and they still failed to boot from UEFI.

    The temporary fix is/was to turn off secure boot in both my Home and Pro machine and now they both boot properly from UEFI.

    I'm not sure if this is a Macrium issue or the Win PE version that Macrium uses to create the rescue drives.

    In any event, you can also just leave secure boot enabled and then use the legacy boot option (if available) to get to the recovery menu until this gets fixed.
      My ComputersSystem Spec
  3.    12 May 2017 #53
    Join Date : Oct 2014
    Posts : 2,461
    W10 Pro + W10 Preview

    I was under the impression that a usb stick needed FAT32 to boot, as most Motherboards do not support UEFI.
      My ComputersSystem Spec
  4.    12 May 2017 #54
    Join Date : Oct 2014
    Hartselle
    Posts : 478
    Windows 10 Pro 16299.64

    Quote Originally Posted by Kari View Post
    @waltc, you cannot clean install from mounted ISO. Only in-place upgrade is possible.

    To clean install you have to boot PC from install media (USB / DVD), alternatively boot from WinPE media and apply install.wim (or install.esd) with DISM, or boot from WinPE media and launch Windows setup from a hard disk partition (or USB / DVD).
    Edit: After further consideration I have changed my position. This procedure does not result in a clean install in the truest sense of the term. For lack of any thing better I am going to call it a fresh install.

    I use a procedure I found two years ago. I don't remember where I found it, so I can not give credit to the person who created it. Some of the steps may seem counter-intuitive but they work, so do not skip them.

    First go to Disk Management and create a new simple volume in an unallocated area. Note the partition number of the new volume. In my example mine is partition number 5. Do not assign a drive letter. Do not format volume. Don't worry about RAW File System. Windows Setup will handle this.







    Mount ISO but do not run Setup.exe. Go to the Sources folder and run Setup.exe from there.





    Proceed as usual in Windows Setup. Choose Custom Install.



    From Windows Setup choose the partition number created earlier. In my example partition number 5.



    Click Next to clean install fresh install Windows into your newly created partition.



    I don't know if this can be considered a "clean" Windows install, but it sure acts and looks like a clean install. @Kari, give it a try sometimes if you are at all interested. I think you might be surprised. It certainly surprised me that a clean install fresh install could be achieved from a mounted ISO inside Windows

    I realize some hard-liners are going to say that a clean install is a single boot system where there are four partitions created for an UEFI/GPT environment (of course a Leagcy/MBR would be different) and I can understand that interpretation. However the procedure above produces a dual (multi) boot system with Windows for all intents and purposes in a seemingly clean install fresh install.

    Notice: The procedure described above is not for a novice. It has the real potential to go sideways if not performed properly (as in an unbootable system). It took me a couple of tries to get it right. Please make sure you have a backup plan that may include Macrium Reflect. It is presented as is and I offer no guarantee of a successful outcome.

    Mods/Admins I know you do not need my permission but please feel free to move or delete this post or @Brink may want to turn it into a tutorial. That's where it probably belongs.
    Last edited by tracit99; 12 May 2017 at 12:05.
      My ComputerSystem Spec
  5.    12 May 2017 #55
    Join Date : Mar 2017
    Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)

    Quote Originally Posted by dencal View Post
    I was under the impression that a usb stick needed FAT32 to boot, as most Motherboards do not support UEFI.
    The stick was created as fat32 with the Macrium Reflect utility.

    The options selected were mbr/gpt so it could boot from either (provides 2 options on the boot menu).
      My ComputersSystem Spec
  6.    12 May 2017 #56

    Quote Originally Posted by dencal View Post
    I was under the impression that a usb stick needed FAT32 to boot, as most Motherboards do not support UEFI.
    I think most modern motherboards do now support UEFI as its becoming the de rigueur replacement for BIOS.
      My ComputersSystem Spec
  7.    12 May 2017 #57
    Join Date : Oct 2014
    Posts : 2,461
    W10 Pro + W10 Preview

    Quote Originally Posted by swarfega View Post
    I think most modern motherboards do now support UEFI as its becoming the de rigueur replacement for BIOS.
    Referring only to booting up.....using USB.
      My ComputersSystem Spec
  8.    12 May 2017 #58
    Join Date : Nov 2015
    Posts : 385
    WINDOWS 10 Pro x64 builds 17040.1000, 16299.64

    Quote Originally Posted by tracit99 View Post
    I use a procedure I found two years ago. I don't remember where I found it, so I can not give credit to the person who created it. Some of the steps may seem counter-intuitive but they work, so do not skip them.
    I don't know if this can be considered a "clean" Windows install, but it sure acts and looks like a clean install. @Kari, give it a try sometimes if you are at all interested. I think you might be surprised. It certainly surprised me that a clean install could be achieved from a mounted ISO in Windows.
    I had no idea of ​​this method, excellent, many times I wanted to install from scratch in another partition and the only way I found was to burn the ISO, thank you very much.
      My ComputerSystem Spec
  9.    12 May 2017 #59
    Join Date : Feb 2016
    Maribor, Slovenia
    Posts : 8,946
    Windows 10 (Pro and Insider Pro)

    Quote Originally Posted by tracit99 View Post
    I use a procedure I found two years ago. I don't remember where I found it, so I can not give credit to the person who created it. Some of the steps may seem counter-intuitive but they work, so do not skip them.

    First go to Disk Management and create a new simple volume in an unallocated area. Note the partition number of the new volume. In my example mine is partition number 5. Do not assign a drive letter. Do not format volume. Don't worry about RAW partition. Windows Setup will handle this.







    Mount ISO but do not run Setup.exe. Go to the Sources folder and run Setup.exe from there.





    Proceed as usual in Windows Setup. Choose Custom Install.



    From Windows Setup choose the partition number created earlier. In my example partition number 5.



    Click Next to clean install Windows into your newly created partition.



    I don't know if this can be considered a "clean" Windows install, but it sure acts and looks like a clean install. @Kari, give it a try sometimes if you are at all interested. I think you might be surprised. It certainly surprised me that a clean install could be achieved from a mounted ISO inside Windows

    I realize some hard-liners are going to say that a clean install is a single boot system where there are four partitions created for a UEFI/GPT environment (of course a Leagcy/MBR will be different) and I can understand that interpretation. However the procedure above produces a dual (multi) boot system with Windows for all intents and purposes in a seemingly clean install.

    Notice: The procedure described above is not for a novice. It has the real potential to go sideways if not performed properly (as in an unbootable system). It took me a couple of tries to get it right. Please make sure you have a backup plan that may include Macrium Reflect. It is presented as is and I offer no guarantee of a successful outcome.

    Mods/Admins please feel free to move or delete this post or @Brink may want to turn it into a tutorial. That's where it probably belongs.
    Quote Originally Posted by LEOPEVA64 View Post
    I had no idea of ​​this method, excellent, many times I wanted to install from scratch in another partition and the only way I found was to burn the ISO, thank you very much.
    One drawback for this procedure is, it won't give you the C: Windows, but another drive letter. I wasn't aware of the whole procedure, maybe this could be the reason for that, but tracit99 will report, if I'm wrong...
      My ComputerSystem Spec
  10.    12 May 2017 #60
    Join Date : Mar 2017
    Posts : 471
    Win 10 Pro 15063.332 (ex-Insider)

    Quote Originally Posted by dencal View Post
    Referring only to booting up.....using USB.
    Check out utils like rufus and look at the different boot configurations that can be established.
      My ComputersSystem Spec

 
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