I'm working on testing windows 7.One of the task is removing staged edition from the image. But I can not use the option /remove stagededition.It's unknown ?? If you type command "DISM.exe /image:<image_path> /?" for help,you can see 4 windows edition servcing commands /set-productkey, /Get-targetEdition, /get-currentEdition,/set-Edition.But /get-stagedEditions option is also available. Deployment Image Servicing and Management tool version is 6.1.7000.0;Image Version is 6.1.7057.0. Image 7057's edition is "professional" and "ultimate" is only available staged edition by type command /get-stagedEditions, but I can't remove it. Anyone can help me? Thanks a lot!