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  1.    26 Jun 2017 #1
    Join Date : Apr 2016
    Posts : 65
    Windows 10 Home Anniversary 64bit

    Install from D Drive?


    Hi...can I install Windows 10 from iso that I can mount from D Dive on my laptop to my C Drive or do I have to boot from disk?
      My ComputerSystem Spec
  2.    26 Jun 2017 #2

    Perhaps a simpler option is to use a usb drive using Media Creation Tool.
      My ComputersSystem Spec
  3.    26 Jun 2017 #3
    Join Date : Apr 2016
    Posts : 65
    Windows 10 Home Anniversary 64bit
    Thread Starter

    I have the iso installed on my D Drive at the moment that's why i though i would check. Not sure if i can boot ftom usb on my laptop. Can I copy the iso to a usb drive and use it that way if I can boot from usb?
      My ComputerSystem Spec
  4.    26 Jun 2017 #4

    No, you can't just copy the ISO, you have to use a program called Rufus to set up a bootable option.

    You should be able to get into your bios in order to set the boot priority so you can use the USB drive.
      My ComputersSystem Spec
  5.    26 Jun 2017 #5
    Join Date : Jul 2015
    Posts : 9,377
    Windows 10 Pro

    Quote Originally Posted by swarfega View Post
    No, you can't just copy the ISO, you have to use a program called Rufus to set up a bootable option.
    You do not have to use a program called Rufus. You don't need any extra program at all to created a bootable USB flash drive from a Windows ISO, it's very easy to do within Windows itself.

    @Deblk, In order to do a clean install of Windows, the computer must be booted from a Windows installation media. It can be a USB flash drive created from the ISO file, DVD, or a bootable partition on a second hard drive (either internal or external).
      My ComputerSystem Spec
  6.    26 Jun 2017 #6
    Join Date : Apr 2016
    Posts : 65
    Windows 10 Home Anniversary 64bit
    Thread Starter

    I used the media creation tool to download the iso onto my D Drive so can I just burn that to DVD to boot from? If I wanted to use a usb flash drive how do I create that from my iso on d drive? Thanks
      My ComputerSystem Spec
  7.    26 Jun 2017 #7
    Join Date : Aug 2014
    Forever West
    Posts : 3,922
    Win10 Home and Pro, Win10 Insider Preview, Win7 Home, Linux Mint

    I've used Mount and setup.exe to install Win10 as an Upgrade over an installed/running previous version. The key was that the .iso file was not stored on the C:/boot/system partition or was on a USB drive.
      My ComputerSystem Spec
  8.    26 Jun 2017 #8
    Join Date : Aug 2016
    S/E England
    Posts : 4,496
    10 Home x64 (1709) (10 Pro on 2nd pc)

    As Berton says, you can do an upgrade just by mounting the .iso and running Setup.exe from within your existing Windows. For a clean install you need to boot from the install media.

    The simplest way to make USB bootable install media is, as Swarfega suggests, to run the media creation tool again, this time selecting the option to make a USB rather than the .iso.

    How to make a bootable USB from your existing .iso depends on whether you want it to boot on a UEFI or a Legacy BIOS system. For both the USB must be formatted with Fat32, then just mount the .iso and copy all the files and folders to the USB. This is sufficient to boot on UEFI systems, but for Legacy BIOS systems the USB's partition must be marked Active. This can be tricky for most USBs as they don't have (or need) a MBR (master boot record).

    The technical way to partition a USB, format to Fat32 and mark Active is to use Diskpart from a command prompt. The easy way to get the correct format is to first make the USB into a recovery drive, (type 'create recovery drive' in the Cortana/Search box). Untick 'include system files' - you don't need them because the next step is to delete all the files/folders on the recovery drive USB and replace them with the ones from your mounted .iso.
      My ComputersSystem Spec
  9.    26 Jun 2017 #9
    Join Date : May 2015
    Posts : 1,645
    Win 10 X64 Pro 15063

    Quote Originally Posted by NavyLCDR View Post
    You do not have to use a program called Rufus. You don't need any extra program at all to created a bootable USB flash drive from a Windows ISO, it's very easy to do within Windows itself.

    @Deblk, In order to do a clean install of Windows, the computer must be booted from a Windows installation media. It can be a USB flash drive created from the ISO file, DVD, or a bootable partition on a second hard drive (either internal or external).
    I suppose that the "easy way" is to use Diskpart, though you don't say.

    It's what I have always done. There are a couple of down sides:

    1) It's a command line utility. Some are uncomfortable with that.

    2) With a little carelessness, a wrong partition can be deleted.
      My ComputerSystem Spec
  10.    26 Jun 2017 #10
    Join Date : Jul 2015
    Posts : 9,377
    Windows 10 Pro

    @Bree,

    Respectfully, you are making it more complicated than it needs to be. To create a Windows 10 USB flash drive for both UEFI and BIOS computers from a saved ISO file - insert an 8 GB or larger USB flash drive. Open a Command Prompt (admin) or Powershell (admin). Run:

    diskpart
    list disk
    select disk # <-replace # with the drive number of the USB flash drive
    clean <- this will erase the entire drive selected in the step above, make sure it is the USB flash drive!
    create part pri
    format fs=fat32 quick
    active
    assign
    exit
    exit

    Then mount the ISO file and copy all the files and folders from the mounted ISO file to the USB flash drive.

    That's it. The diskpart commands take less than a minute to do. How long it takes to copy the files and folders depends on the speed of the flash drive.

    I can have the flash drive done before most people can enter the correct settings in the proper order in Rufus, and it is guaranteed to be configured to work in both UEFI computers and legacy BIOS computers as long as the computer has the capability to boot from a USB flash drive.

    I believe you can also do all of the diskpart steps in Windows disk management, I'll try when I get home. You can definitely do them all in any decent partitioning program like MiniTool Partition Wizard or AEOMI Partition Assistant.
      My ComputerSystem Spec

 
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