You want to install Debian GNU/Linux on a machine?
You don’t have an install CD at hand (or you’re facing a netbook)?
USB booting is a nightmare?
That’s the situation I was in lately. So I remembered some clever guys had turned the debian installer into a windows executable: The Debian Installer Loader. It’s available at the well memorizable site http://goodbye-microsoft.com/ and works absolutely perfect.
It even preseeds some installation values from the Windows environment.
You also have the choice whether you turn the machine into dual-boot (takes much time for shrinking NTFS partition) or convert it as a whole.
This tool gets rated five stars by me!