Windows Installation Guide

WARNING

This process can permanently brick your device if done incorrectly. Read every step carefully and DO NOT modify partitions unless explicitly instructed.

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Diskpart

DANGER

DO NOT ERASE, CREATE OR MODIFY ANY PARTITION IN DISKPART. THIS CAN ERASE YOUR ENTIRE UFS OR BREAK FASTBOOT. YOUR DEVICE MAY BECOME PERMANENTLY BRICKED.

1. Open Command Prompt as Administrator.

2. Start diskpart:

diskpart

3. Find the Windows partition:

list volume

• Replace $ with the actual volume number of WIN(DEVICE-NAME):

select volume $
assign letter F

4. Find the ESP partition:

list volume

Replace $ with the actual volume number of ESP(DEVICE-NAME):

select volume $
assign letter Y

5. Exit diskpart:

exit

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Installing Windows

You can download ISO of Windows from uupdump. But you may need to run a script to generate ISO files.

Alternatively there is a site where you can download premade ESD images. We do not guarantee its safety. Please decide which method by yourself.

Replace path\to\install.esd with your actual image path:

dism /apply-image /ImageFile:path\to\install.esd /index:6 /ApplyDir:F:\

If you get Error 87, check the correct index:

dism /get-imageinfo /ImageFile:path\to\install.esd

Then replace index:6 with the correct index of Windows

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Create Windows Bootloader

If an error appears like: "Failure when attempting to copy boot files"

• Reopen diskpart and assign a new letter to the ESP partition (ESP(DEVICE-NAME)), then use that letter instead of Y.

• Create boot files:

bcdboot F:\Windows /s Y: /f UEFI

• Remove ESP drive letter:

mountvol Y: /d

If this fails, ignore it. The phantom drive will disappear after reboot.

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