Complex sentence: The program runs on Microsoft Windows operating systems (only 2000 and XP, not Vista or 7) or from a bootable CD-ROM and enables creation and modification of partitions.
Split into simpler sentences: The program runs on Microsoft Windows operating systems including Windows 2000 and Windows XP, but is incompatible with Windows Vista or Windows 7. The utility can also be run from a bootable CD-ROM and enables creation and modification of partitions.