AutoPartition=0 it will prompt you for the size of the partitions. Repartition=No will prompt you for which Filesystem to use. You cannot automatically use FAT32 just NTFS. UnattendSwitch="yes" Will avoid the "lets spend a few moments setting up your computer" WaitForReboot="No" This will not prompt the 15 second before rebooting. So, by setting AutoPartition at 0 and Repartition at No, you will be prompted for choosing a partition to install to, and the filesystem you want. Although, I've discovered that this will only prompt you when you first delete the partition and then recreate it. This shouldn't be a problem since the partition size will remain the same, and you're doing a clean install. Other partitions that exist on your system (i.e. for backup purposes) won't be affected in any way.