NTFS Considerations

Security Supports complete WindowsNT security, so you can specify who is allowed various kinds of access to a file or directory.
Activity log Keeps a log of activities to restore the disk in the event of power failure or other problems.
File sizes Maximum file size is 4 GB to 64 GB, depending on the size of your clusters.
File compression Supports flexible per-file compression.
Operating system compatibility Recognized only by WindowsNT. When the computer is running another operating system (such as MS-DOS or OS/2), that operating system cannot access files on an NTFS partition on the same computer.
MS-DOS data sharing Cannot share data with MS-DOS on the same partition

FAT Considerations

Security Files are not protected by the security features of WindowsNT.
Activity log FAT file systems do not keep a log.
File sizes Maximum file size is 4 GB.
File compression File compression is not supported.
Operating system compatibility Allows access to files when your computer is running another operating system, such as MS-DOS or OS/2.
MS-DOS data sharing Enables you to share data with MS-DOS on the same partition.
 

HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon.
Right-click in the right pane of Winlogon and choose New, String Value. Name the new value
AutoAdminLogon. Now double-click your new entry and assign it the value of 1. Click OK.