Paul Schwotzer

This worked! Thanks Jotnar! While a single %i works from a command prompt, I guess the double %%i is necessary inside a batch file. SOLVED.

Background: I am using MDT to create an initial Vista "master" image. Once configured I save it as a .wim using imagex. Goal: I want to use a (widely documented) WinPE media (DVD or UFD) to programmatically: 1) format the hard drive into C: and D: partitions using diskpart 2) use imagex to apply the previously captured image to the freshly formatted C: drive Problem: When the WinPE media boots I do get an X: drive. But I also get a C: or D: drive that contains the "ISO" portion of the WinPE media. The media mounts as C: if there is an unformatted hard disk. The media mounts as D: if there is a previously formatted C: drive. EITHER of these drives (C: or D: ) interferes with my diskpart commands. Is there a way to boot WinPE such that the non-X: portion does not interfere with C: and D:? I can use one of the documented WinPE methods (startnet.cmd, unattend.xml, winpeshl.ini) to launch commands. But those commands will fail if C: or D: is already mounted. Perhaps I'm not creating the WinPE media correctly, maybe the mounted C: or D: data is not normal? Thanks, Paul Schwotzer