Fdisk simulation

This is the first window that is displayed when opening FDISK. However, this screen will not be displayed in Windows NT / Windows 95 OSR1 or lower operating systems. This screen is asking if you wish 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
disk, you will not be able to access the new drive(s) using other operating
systems, including some versions of Windows 95 and Windows NT, as well as
earlier versions of Windows and MS-DOS. In addition, disk utilities that
were not designed explicitly for the FAT32 file system will not be able
to work with this disk. If you need to access this disk with other operating
systems or older disk utilities, do not enable large drive support.

Do you wish to enable large disk support (Y/N) . . . . . . . . . . . ? [Y]

In this screen you will 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.