Easy and detailed instructions. This is better than those Automated Apps like WinReducer and Win Toolkit which usually are buggy. Here you Right click the batch file and choose to run as Admin and then go have coffee. It's that easy. Attached photo is the folder structure to what we will create. This guide will slipstream all updates and clean up the image and convert the image to and from ESD<--->WIM Prepare and Slipstream Updates In to a Windows 8.1 .wim or .esd Image (Including Update 1) What you need: install.wim image file from the Windows installation media. If it is an install.