Drop two files, mpam-fe圆4.exe & FilesList64.dll into the root of the wim file (Most current definitions at time of downloading).Remove bootfix.bin file (Removes 'Press Any Key to Boot from CD/DVD.' message).I extract the ISO in order to get the source boot.wim file and I make the following edits with the DISM tool: The tool downloads and creates an ISO for you. I have been working on configuring a network bootable virus removal suite, and I am using the Windows Defender WinPE iso generated from using this 64-bit tool.