MacBook Air installs dual system method.
1, first in the Mac system "utility" to find the "Boot Camp Assistant" program icon, open and follow the prompts, in the original Mac partition a space to create a Windows partition, partitioned out of the partition can only be used to install the system, That is, Windows has only one C partition after installation. The size of the partition depends on your needs, and in general, if you choose Apple's products, Windows should not be used frequently.
2, after the partition after the boot Camp assistant will appear prompts, insert XP or Vista, win7 system installation CD. After you plug in the disc and see the desktop will have a disc icon, indicating that the system has recognized the installation of the CD (can not use ghost), and then restarted, the Boot Camp Assistant has a restart option.
3, after the reboot, the MacBook will automatically enter the Windows installation interface, and PC installation system is no different, the only difference is the location of partitions. This place is not an accident should be shown 4 partitions, one is your Mac partition, one is already divided out of the boot camp is the future of the Windows partition, there is a 200M or so small unpartitioned area, note this must not delete or format, The rest has a 8M or so of the unpartitioned area, in the installation of XP will often appear this situation, is generally the system's reserved partition, do not care about it.
4, check out the boot camp partition directly formatted, do not delete. Choose NTFS format for better compatibility. Install directly after formatting is completed.
5, fully installed Windows, after entering the desktop do not plug any USB devices, including the mouse, keyboard and other peripherals will Mac OS System Recovery CD into the CD drive, installed from the disk read out of the boot Camp software, which has a Mac book air device Windows driver software, Reboot after the installation is complete. Wait until the reboot is ready to use.