Running OS X and Windows XP on One Machine
If you own one of the newer Intel-based Macs, you can run OS X and Windows XP on one machine, thanks to Apple’s Boot Camp. Although Boot Camp itself is free, you have to supply your own single-disc, full-install version of the Windows XP CD with Service Pack 2 or later or Windows Vista. An XP or Vista upgrade disc won’t work.
You also need to meet the following requirements to run Boot Camp:
You have an Intel Mac with OS X version 10.5 or later — if need be, run Software Update.
You have at least 10GB of free space on the startup disc.
You have a Mac OS X Leopard installation disc.
If you don’t run into snags, the entire installation (including Windows) should take about an hour.
But because snags are possible, back up all your important information on the Mac’s startup disk.
Boot Camp, introduced in April 2006, graduated from beta status with the arrival of Leopard, which includes Boot Camp Assistant software stored in the Utilities folder under Applications.