Here's how to do that step by step:Ĭopy install.wim from your installation disc to your hard drive. You can also do it yourself manually by unpacking the cab files, editing three text files, and using dism command to update the installation packages. You can use third party tools to accomplish the task.
Windows 7 slipstreaming is not officially supported. Perhaps you can sort out what I've missed. It's getting late here, I'm going to flag this as a community wiki. These instructions have worked for some people, but I'm getting an error on the last step. I think we're close, but not quite there yet.