Hide partitions in windows disk management

In Windows, you may want to hide some partitions in Windows Disk Manager to prevent damage from Windows, this guide will tell you how to change gpt partition's attribute to mark a partition as system partition.

WARNING

Please carefully read each step and comments.
Wrong actions may damage your GPT table and brick your device.

Requirement

• A phone in Windows or Android/Linux
• Diskpart in Windows, gdisk in Linux, termux+gdisk+root in android.

Steps in Windows

• Open a terminal with administrator permission.
• Type diskpart and enter .
• List all disks

lis dis

• Choose the disk contains your target partition, use 1 for example here.

sel dis 1

• List all partitions in this disk

lis par

• Select your target partition, use 1 for example here.

sel par 1

• Get partition current gpt attribute

det par
# Partition 1
#  Type    : d32b7c28-e321-21cc-1122-12acc91ec92b
#  Hide  : No
#  Necessary: No
#  Attribute  : 0X1C00000000000000
#  Bytes Offset: 1234

• Set system bit in partition gpt attribute.
  • system bit is the lowest bit.

WARNING

Please ONLY set the last bit to 1.

GPT ATTRIBUTES=0x1C00000000000001

• Set system bit for all partitions in a lun can make the lun invisible in Windows device manager.

Steps in Android/Linux

• Install Termux
• General setup, and setup gptfdisk

# Replace mirror
#  *Use space to select and enter to confirm*
termux-change-repo 
# Update
apt update
# Install root repo
apt install root-repo
# Install gdisk
apt install tsu gptfdisk

• Open gdisk

tsu # when termux request root permission, please agree.
gdisk /dev/block/sdx # x can be a, b, or other letters

• Enter expert mode

x
# Expert command (? for help):

• Change partition's attribute

# Expert command (? for help): 
a # Change partition attribute
# Partition number:
1 # Enter partition number
# Known attributes are:
# 0: system partition
# 1: hide from EFI
# 2: legacy BIOS bootable
# 60: read-only
# 62: hidden
# 63: do not automount

# Attribute value is 10C0000000000000. Set fields are:
# 54 (Undefined bit #54)
# 55 (Undefined bit #55)
# 60 (read-only)

# Toggle which attribute field (0-63, 64 or <Enter> to exit): 
0 # System bit
# Have enabled the 'system partition' attribute.
# Attribute value is 10C0000000000001. Set fields are:
# 0 (system partition)
# 54 (Undefined bit #54)
# 55 (Undefined bit #55)
# 60 (read-only)

• Set system bit for all partitions in a lun can make the lun invisible in Windows device manager.

In the last

This guide only help you interact with tools in CLI.
The tool may support run in script, why not have a try with running these commands in script?