Windows 10 build 16222

The development branch which this build belongs to, which focuses on the ARM64 Cobalt PC bring-up effort, is not to be confused with Cobalt, the Windows development semester.
10.0.16222.1003.rs_onecore_base_cobalt.170614-2010
Build of Windows 10 Fall Creators Update
Screenshot
OS familyWindows 10 (NT 10.0)
Version number10.0
Build number16222
Build revision1003
ArchitectureARM64
Build labrs_onecore_base_cobalt
Compiled on2017-06-14
Expiration date
Timebomb2017-12-04 (+173 days)
SKUs
S
Pro
Pro for Workstations
Pro Education
Enterprise (G)
Education
About dialog
Windows10-10.0.16222.1003-winver.png

Windows 10 build 16222 is an internal build of Windows 10 Fall Creators Update, which was publicly shared online on 12 March 2025 only in the ARM64 architecture.

Installation[edit | edit source]

QEMU installation guide:

The following requirements used in order to install this build onto a virtual machine are listed below:

Instructions[edit | edit source]

Create the needed virtual disk images through the diskpart utility by running the below script; they will be created under a directory in the C: drive named 16222ARM64. The partitions it will contain will be respectively mounted under drive letters P and Z.

create vdisk file="C:\16222ARM64\HDD.vhd" maximum=65536 type=expandable
select vdisk file="C:\16222ARM64\HDD.vhd"
attach vdisk
convert gpt
create partition efi size=100
format quick fs=fat32
assign letter=Z
create partition primary
format quick fs=ntfs
assign letter=P
exit

Deploy the WIM image, mount the VirtIO driver disc image, install the Windows 10-specific VirtIO storage driver by invoking the following DISM commands and add the boot files to the EFI partition:

rem Apply the image and install the VirtIO storage driver
DISM /Apply-Image /ImageFile:"X:\path\to\install.wim" /ApplyDir:P:\ /Index:1
DISM /Image:P:\ /Add-Driver /Driver:"Y:\viostor\w10\ARM64\viostor.inf"

rem Make system bootable
bcdboot "P:\Windows" /s Z: /f UEFI

Eject the currently attached virtual disk from the machine, then paste and run the contents of the below script onto a batch file within the QEMU installation directory:

set MAIN="C:\16222ARM64\HDD.vhd"

qemu-system-aarch64 ^
    -M virt -cpu cortex-a72 -smp 4 -m 2048 ^
    -device qemu-xhci -device usb-kbd -device usb-tablet ^
    -hda %MAIN% ^
    -bios fw\QEMU_EFI.fd -device ramfb ^
    -rtc base=2017-06-15,clock=vm ^
    -device intel-hda -device hda-output ^
    --accel tcg,thread=multi

Bugs and quirks[edit | edit source]

  • A blank troubleshooter is listed on the Troubleshoot page.
  • Non-functional Connect and Microsoft Text Input Application applications are listed in the Start menu.

Gallery[edit | edit source]