Windows 8.1 missing WinRE.wim in WinPE

I'm trying to pull a Windows 8.1 .wim file down to a laptop (the same laptop that was the source of the .wim), and am following these directions from MS. Everything works until "W:\Windows\System32\Recovery\winre.wim T:\Recovery\WindowsRE\winre.wim" (W:\ is what will be called C:\, when I get into Windows).

As far as I can tell, there is no winre.wim in W:\windows\system32\recovery. I ran used dir to search the W: drive, but there is no winre.wim. Where is it?

Thanks.