[Guide] Windows PE

[Netshroud]

To add Windows PE to your USB Multipass, you first need the Windows Automated Installation Kit (WAIK) or the OEM Preinstallation Kit (OPK), and you need to create a Windows PE Image up until Step 4. Then simply copy the files from your Windows PE "ISO" folder to the root of your USB, namely "boot","EFI" and "Sources". You can move "bootmgr" wherever you want, I moved it into the /boot folder. Make sure your WIM image is in /Sources.

Note: As far as I am aware, renaming the /boot folder for Windows PE will not work.

Then simply chainload bootmgr.

Grub Legacy and Grub4DOS:

title Windows PE 3.0
chainloader /boot/bootmgr

Grub2:

menuentry "Windows PE 3.0" {
  chainloader /boot/bootmgr
  }

Note: You may get a "command not found" error for "chainloader". This is because Grub2 is modular. Use the "insmod chain" command to load the chainloader module.