Ventoy Windows 11 Bootable USB Guide

Ventoy Windows 11 Bootable USB Guide | Generated by AI

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Comprehensive Summary: Windows 11 Bootable USB — Ventoy Method

1. Environment Analysis

First, I scanned the system to understand what we were working with:

Check	Result
USB device	`/dev/sdb` — 14.6G USB disk detected
Existing partitions	`/dev/sdb1` (200M, VFAT, EFI) + `/dev/sdb2` (14.5G, VFAT, WIN11)
Existing content	A Windows 11 installer was already present — made via manual FAT32 + `wimsplit` (Method 3)
ISO file	`~/Downloads/Win11_25H2_English_x64_v2.iso` (7.9G)
Ventoy installed?	No — not on the system

2. Decision: Why We Used Ventoy Anyway

The existing USB was already bootable (EFI partition + split install.swm files). However, the user explicitly requested Ventoy. Key advantages of re-doing it with Ventoy:

No 4GB FAT32 limit — Ventoy uses exFAT, so install.wim stays intact (no splitting needed)
Multi-ISO support — can drop Linux ISOs alongside Windows later
Easier updates — just replace the ISO file, no repartitioning
Better compatibility — Ventoy handles both Legacy BIOS and UEFI

3. Steps Executed

Step	What I Did	Command
A	Downloaded Ventoy v1.1.17	`wget https://github.com/ventoy/Ventoy/releases/download/v1.1.17/ventoy-1.1.17-linux.tar.gz`
B	Extracted the tarball	`tar xzf ventoy-1.1.17-linux.tar.gz`
C	Unmounted old USB partitions	`sudo umount /dev/sdb1 /dev/sdb2`
D	Installed Ventoy to `/dev/sdb`	`printf 'y\ny\n' \\| sudo ./Ventoy2Disk.sh -i /dev/sdb`
E	Mounted new Ventoy partition	System auto-mounted `/dev/sdb1` at `/mnt`
F	Copied Windows 11 ISO	`sudo cp ~/Downloads/Win11_25H2_English_x64_v2.iso /mnt/`
G	Synced and unmounted	`sync && sudo umount /mnt`
H	Powered off the USB	`udisksctl power-off -b /dev/sdb`

4. What Ventoy Did Internally

During step D, Ventoy:

Wiped the entire disk (dd if=/dev/zero ...)
Created 2 partitions:
- /dev/sdb1 (14.6G, exFAT, label Ventoy) — for storing ISO files
- /dev/sdb2 (32M, vfat, label VTOYEFI) — EFI bootloader partition
Installed its custom bootloader — written to the MBR and the EFI partition
Wrote Ventoy’s core disk image — containing the boot menu engine

5. Final USB Layout

Partition	Size	Filesystem	Label	Role
`/dev/sdb1`	14.6G	exFAT	`Ventoy`	ISO storage (holds `Win11_25H2_English_x64_v2.iso` at 7.9G)
`/dev/sdb2`	32M	vfat	`VTOYEFI`	EFI bootloader

Total used: 7.9G / 15G (53%) — plenty of room for more ISOs.

6. How Booting Works

When you boot from this USB:

UEFI firmware loads VTOYEFI partition → Ventoy’s EFI bootloader starts
Ventoy scans /dev/sdb1 for .iso files
Boot menu displays Win11_25H2_English_x64_v2.iso
You select it → Ventoy creates a virtual BIOS/UEFI environment and boots the Windows installer directly from the ISO
Windows installer sees a normal boot environment and proceeds with installation

7. Critical Note for Lenovo Xiaoxin

If Windows installer doesn’t detect the NVMe SSD, it’s an Intel VMD/RST driver issue — not a USB problem. Solution:

Download Intel RST F6 driver on another machine
Put it on a separate USB
At disk selection → Load Driver → browse to driver folder → SSD appears

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