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First you will need a few things...

Create "Staging VM":

  • Don't add a NIC to new VM
  • Install Windows as normal, after it's first reboot it will ask to select region
  • STOP HERE AND ENTER "AUDIT MODE"
  • CTRL+SHIFT+F3
  • Close System Preparation Tool for now

Disabling the “Consumer Experience” via GPO (gpedit.msc)

Computer Configuration > Administrative Templates > Windows Components > Cloud Content
Enable >> Turn off Microsoft consumer experiences
  •  Add Back NIC to VM
  •  Update Windows via regular methods
  • Reboot to complete updates as needed, closing SySPrep each reboot
  • Tweak Windows as desired, I don't bother tweaking untill after Windows Update as sometimes Windows Update overwrites my changes and I don't notice
  • Removing Apps if desired, run the following in PowerShell:
  • Download my powershell script and run as Administrator
  • First you need to "Set-ExecutionPolicy RemoteSigned" in PowerShell to enable running scripts
  • remove_uwp_apps_win10.ps1
  • Note: these apps can be redownloaded via the Windows Store if desired, but they will not be included in the base Windows install.
  • Once satisfied with VM shut down and export backup named "Ready for SySPrep"
  • Power on and this time, run SySPrep with desired options

    cd C:\Windows\System32\Sysprep
    sysprep.exe /generalize /oobe /unattend:C:\Autounattend.xml /shutdown
  • Once its done it should poweroff
  • Now fire up the WinPE ISO and create a custom WIM image
  • Extract image back to host computer
  • THIS IS WHERE I SWITCH TO NTLITE!
  • Split IMG into files smaller than 4GB's for FAT32 (Required for UEFI)

    Dism /Split-Image /ImageFile:win10sys.wim /SWMFile:install.swm /FileSize:3800
  • Extract Regular Win10 ISO to C:\WinExtract
  • Remove install.(esd/wim) from C:\WinExtract\sources\
  • Copy over install*.swm files back into C:\WinExtract\Sources
  • Create new ISO via the following in CMD

    cd C:\Program Files (x86)\Windows Kits\10\Assessment and Deployment Kit\Deployment Tools\amd64\Oscdimg\
    oscdimg -m -o -u2 -lCPBA_X64FRE_EN-US_DV5 -udfver102 -bootdata:2#p0,e,bC:\WinExtract\boot\etfsboot.com#pEF,e,bC:\WinExtract\efi\microsoft\boot\efisys.bin C:\WinExtract\ C:\Win10v1709-Custom.iso
  • Inject any other drivers into ISO with whatever software you choose. I like to add the VMWare_Tools.ISO as well as the VirtIO KVM Drivers ISO and the NVidia Graphx drivers and VirtualBox Guest Additions.
  • I just place them under a folder called "Drivers" then if you need a driver to load for windows installation you can just manually search that folder and windows should find the drivers automatically.

Notes:

  • Start small with tweaks and then test/deploy and see how it goes before doing all of your tweaks
  • Not all changes stuck, like changes to "View" and desktop shortcuts etc, but RegEdit and GPO changes stayed as well as programs which is enough of a "head start" for me.
  • To make both UEFI and MBR ISO you can't have automatic partitioning in unattend.xml
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