Windows 11 25H2 Bootable USB Created | Generated by AI
Summary — Windows 11 25H2 Bootable USB Created ✅
The Problem
Win11_25H2_English_x64_v2.iso is a DVD image (ISO9660), not a raw disk image. Etcher expects a partition table inside the image (like Ubuntu ISOs), so it errors with “missing partition table”. Even if you bypass it, the 7.1 GB install.wim exceeds FAT32’s 4 GB file limit — the USB won’t boot.
What We Did
| # | Action | Command / Tool |
|---|---|---|
| 1 | Analyzed the ISO and USB | diskutil list, hdiutil imageinfo, verified install.wim is 7.1 GB |
| 2 | Formatted the 15.7 GB USB as FAT32 with GPT | diskutil eraseDisk MS-DOS WIN11 GPT /dev/disk13 |
| 3 | Copied all files from ISO to USB (excluding install.wim) |
rsync -av --exclude='sources/install.wim' |
| 4 | Split the 7.1 GB install.wim into 3 FAT32-safe chunks (.swm files) |
wimlib-imagex split ... 3800 |
Final USB Drive /Volumes/WIN11
- File system: FAT32 + GPT
- Size: 7.9 GB used / 14 GB total
- Structure:
boot/,efi/,sources/,setup.exe,support/ - Install files:
install.swm(3.2 GB) +install2.swm(3.7 GB) +install3.swm(79 MB)
This is the official Microsoft-compatible method for UEFI Windows installation media. The USB was safely ejected and is ready to boot the Lenovo Xiaoxin.
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