The easiest way to accomplish what you want to do is to use BartPE or WinPE, boot from CDROM. After booting, you can then reformat and clean the folders on drive C. After that, run winnt32.exe with the switches to copy the installation files to drive C with the source from drive D. On reboot, remove the CD's and installation will start on drive C. You can create BartPE free from www.nu2.nu if you do not have a copy of WinPE. By the way, if you want to reformat a drive from BartPE using the small file system application A43 or something, you need to right click the drive without viewing the drive contents (left click), otherwise it will complain saying another application is using the current drive and it cannot quick format.