Windows 11 USB Setup Guide

Windows 11 USB Setup Guide | Generated by AI

Home 2026.07

For your specific situation (Windows 11 install on Lenovo Xiaoxin), here’s what I did earlier and the recommended approach:

What We Did Earlier (wimlib method on Mac)

# 1. Format USB as FAT32 with GPT
diskutil eraseDisk MS-DOS WIN11 GPT /dev/disk13

# 2. Mount ISO
hdiutil attach Win11_25H2_English_x64_v2.iso

# 3. Copy everything except install.wim (it's 7.1GB > FAT32's 4GB limit)
rsync -av --exclude='sources/install.wim' /Volumes/CCCOMA_X64FRE_EN-US_DV9/ /Volumes/WIN11/

# 4. Split the large install.wim into <4GB chunks
wimlib-imagex split \
  /Volumes/CCCOMA_X64FRE_EN-US_DV9/sources/install.wim \
  /Volumes/WIN11/sources/install.swm \
  3800

# 5. Eject when done
diskutil eject /dev/disk13

This produces a UEFI-bootable USB that Windows Setup recognizes natively. The .swm split files are handled automatically by the installer.

Alternative (if you have a Windows machine)

Rufus — simplest option:

Select ISO → pick GPT + UEFI (non-CSM) → click Start
Handles the install.wim size issue automatically

Alternative (if you stick with Mac)

balenaEtcher — not recommended for Windows ISOs as discussed earlier (wrong image type).

Key Point for Your Lenovo Xiaoxin

However — the bigger issue right now is the 0xC19001F4 error you’re hitting. Before re-flashing, I’d check this BIOS setting first:

Intel VMD Controller or Intel RST → set to Disabled / AHCI

That’s more likely to be your actual blocker than the USB stick itself. Want me to walk you through finding it in the BIOS?

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