pat mcgroin said:
As Bolbi stated there is no way to know yet but if it can this may help.http://www.vistax64.com/tutorials/88236-repair-install-vista.html
Good research. This screenshot
of the install process shows that the Custom Install option does allow you to make changes to disks and partitions. Win7 is very similar to Vista (and where they're different, Win7 is almost always better IMO), so it would surprise me if this functionality was removed. Going way back, the only hands-on experience I have had with this was reinstalling XP Home with my Dell OEM disk (it was a CD back then
). That did allow me to reformat, using the good old command line.