Apple Boot Camp Mac OS X v10.6 Snow Leopard - Manual (Page 7)

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Refer to your Windows installer documentation to help you determine the best
partition size for your system. Windows Vista and Windows 7 require more disk
space than Windows XP.
If you’re installing Windows XP and your Windows partition can be 32 GB or smaller,
you can choose between two formats for that partition. You’ll select the format in
a later step, but you must decide on a format now so you can choose an appropriate
size. Here are the two formats:
 NTFS—Provides better reliability and security, but you will not be able to save files
to the Windows volume from Mac OS X. This partition can be any size.
 FAT—Provides better compatibility, allowing you to read and write files on the
Windows volume from Mac OS X. This partition must be 32 GB or smaller.
If you’re installing Windows Vista or Windows 7, the Windows partition must use the
NTFS format.
If You Have Problems Creating a Partition
If you have problems creating a Windows partition, check the following:
 The disk must be a single partition, formatted as Mac OS Extended (Journaled).
If the disk already has more than one partition, you must repartition it.
 The disk must be an internal disk. You cannot use Boot Camp Assistant to install
Windows on an external disk.
 If a dialog appears saying “The disk cannot be partitioned because verification
failed,” try repairing the disk using Disk Utility and opening Boot Camp Assistant
again. If that doesn’t work, back up all the information on your computer, start up
from your Mac OS X installation disc, and erase the disk using Disk Utility. Restore
the information to your computer from the backup and try opening Boot Camp
Assistant again.
Step 3: Install Windows
Read and follow these instructions for installing Windows on your Mac computer.
Refer to your Windows documentation for general information about installing and
setting up Windows.
To install Windows on your Mac computer:
1 If you already quit Boot Camp Assistant without installing Windows:
a Open Boot Camp Assistant.
b Select “Start the Windows installer.”
c Click Continue.
2 Insert your Windows installation disc.