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  1.    17 Mar 2017 #1
    Join Date : May 2016
    Chicago area
    Posts : 32
    Win 7 Home Premium and Win 10

    Trying to do a clean install


    I keep getting an 025 error about 60 percent into installing Win 10 on a new WD 1TB drive. I've deleted and formatted partitions, and only used the one drive, others disconnected. I upgraded from 7 to 10 some time back and that's on another drive but I want to do a clean install. Why is this so difficult? Actually I know why it's so difficult, I didn't buy a disc but upgraded for free. UGGGHHHH
      My ComputerSystem Spec
  2.    17 Mar 2017 #2
    Join Date : Jul 2015
    Posts : 9,325
    Windows 10 Pro

    What are you trying to install Windows 10 from, and what is an 025 error?
      My ComputerSystem Spec
  3.    18 Mar 2017 #3
    Join Date : May 2016
    Chicago area
    Posts : 32
    Win 7 Home Premium and Win 10
    Thread Starter

    I'm using the ISO file burned onto a DVD. The error I'm getting is 0x8007025d, Windows cannot install required files. I've tried downloading the ISO file twice and burned to another disc, still the same error code.
      My ComputerSystem Spec
  4.    18 Mar 2017 #4
    Join Date : Oct 2016
    Caledon, Ontario, Canada
    Posts : 3,948
    Windows 10 Pro Build 1703

    Hi Brian925

    Have you made any changes in your BIOS. I think they are required to make this happen. Please reference your manual, page 26 ensure fast boot is disabled. Next, page 27, set OS type to Windows 8 (I don't think you get a win 10 option), CSM Support to Enabled and in Boot Mode Selection set to UEFI and Legacy or just UEFI.

    When you first boot, and if I understand correctly this is a clean install and you are over writing your entire HDD or SSD, please confirm.

    If you are, when you first boot with your media press shift and F10. then

    diskpart
    List disk (find your target disk)
    select disk 0
    clean
    Convert gpt
    exit
    exit

    This example assumes no other drives are connected and disk 0 is the target ssd or HDD. It wipes the disk, don't run if you data is on drive.

    Proceed with install. Allow Window to set up partitions.


    Ken
      My ComputerSystem Spec
  5.    18 Mar 2017 #5
    Join Date : May 2016
    Chicago area
    Posts : 32
    Win 7 Home Premium and Win 10
    Thread Starter

    Ken, did everything you said and still getting the same error. When doing this I have all my other drives disconnected and in fact no USB's connected other than the mouse.
      My ComputerSystem Spec
  6.    18 Mar 2017 #6
    Join Date : Jul 2015
    Posts : 9,325
    Windows 10 Pro

    First you have to know if the computer is going to run in UEFI mode or legacy BIOS (CSM) mode. UEFI needs the hard drive/SSD partitioned as GPT. Legacy BIOS (or CSM) requires the hard drive/SSD to be partitioned as MBR. Once I figure that out, I set the hard drive/SSD to GPT or MBR using the commands Caledon Ken gave.

    For really stubborn installs that just won't work from USB flash drive or DVD, I then create a 6 GB FAT32 partition at the very end of the hard drive/SSD. Then I copy all the Windows 10 files and folders to the hard drive/SSD. I do this all using Kyhi's Recovery tools (booted into from a USB flash drive or DVD). Then run setup.exe from the hard drive/SSD and install Windows 10 to the allocated space remaining on the drive in front of the FAT32 partition I created at the end.

    Windows 10 Recovery Tools - Bootable Rescue Disk
      My ComputerSystem Spec
  7.    18 Mar 2017 #7
    Join Date : Oct 2016
    Caledon, Ontario, Canada
    Posts : 3,948
    Windows 10 Pro Build 1703

    Could I ask, have you just tried the Media creator tool straight onto a 4 GB key. If you have just ignore this post.
      My ComputerSystem Spec
  8.    18 Mar 2017 #8
    Join Date : Jul 2015
    Posts : 9,325
    Windows 10 Pro

    Quote Originally Posted by Caledon Ken View Post
    Could I ask, have you just tried the Media creator tool straight onto a 4 GB key. If you have just ignore this post.
    It probably requires an 8GB USB flash drive now as the current Media Creation Tool downloads a 4-version ISO with Windows 10 Home, Pro, Education and Enterprise on it.
      My ComputerSystem Spec
  9.    18 Mar 2017 #9
    Join Date : Dec 2013
    Sydney, Nova Scotia, Canada
    Posts : 10,399
    Windows 10 IoT

    I haven't been able to use a 4 gig thumb drive for a while now, MCT rejects it as not having enough free space.
      My ComputerSystem Spec
  10.    18 Mar 2017 #10
    Join Date : May 2016
    Chicago area
    Posts : 32
    Win 7 Home Premium and Win 10
    Thread Starter

    Heck, trying to download to a 16Gb usb drive and the media creation tool doesn't even see that. Tried formatting in both fat 32 and NTFS and neither works. This sucks.
      My ComputerSystem Spec

 
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