PartitionMagic was a computer program for hard disk drive partitioning originally made by the PowerQuest corporation but now owned by Symantec. As of December 8, 2009, the Symantec website stated that they no longer offer Partition Magic. 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. Existing partitions can be resized without loss of data.