Not working with the image that I mounted. Any ideas? Code: DISM OS Provider: PID=1156 Failed to mount the remote registry. - CDISMOSServiceManager::SetWindowsDirectory(hr:0x80070020) DISM.EXE: Failed to set the windows directory to 'd:\offline\windows'. HRESULT=80070020 Edit: Oops.. User Error. I tried rebase on a 64-bit image that I mounted on a 32-bit system.