This is the first window that is displayed when opening FDISK. However, this screen will not be displayed in Windows NT and Windows 95 OSR1 or lower operating systems. This screen is asking if you want to enable the new FAT, which is FAT32.
Your computer has a disk larger than 512 MB. This version of Windows
includes improved support for large disks, resulting in more efficient
use of disk space on large drives, and allowing disks over 2 GB to be
formatted as a single drive.
IMPORTANT: If you enable large disk support and create any new drives on this
Do you want to enable large disk support (Y/N) . . . . . . . . . . . ? [Y]
In this screen you have two options to choose from: either Y for Yes, to enable FAT32 when creating partitions; or N for No, do not enable FAT32 and instead use FAT16.