http://www.nu2.nu/fixnt4/


The steps to fix NT4.0 are:
Download mkbt.exe from the mkbt page and put in on a floppy disk.


On a Windows 2000 or XP PC copy ntldr and ntdetect.com. They are normally located in the c:\ folder and hidden. Copy them to a floppy disk. Use mkbt.exe to extract the NTFS boot sector(s). A bootable NTFS partition uses the first 16 sectors to store the bootstrap loader.

Use this command to extract the NTFS bootstrap loader and save it to floppy disk:
mkbt -x -c c: a:\bootsect.bin

The -c option is for "copy" mode.
The -x option is for "expert" mode, in standard mode mkbt only accepts floppy drives "a:" and "b:"


Goto to the "limited" NT 4.0 system, boot it and login as administrator.

Rename the existing ntldr into ntldr.nt4
Rename the existing ntdetect.com into ntdetect.nt4
Copy the ntldr and ntdetect.com from the floppy disk on the NT 4.0 system partition, normally "c:\".

Use this command to make a backup of the current boot sector:
mkbt -x -c c: a:\bootsect.nt4

Use this command to install the NTFS bootstrap loader from floppy disk:
mkbt -x a:\bootsect.bin c:


If your NT 4.0 machine uses a fixed NT boot disk driver ntbootdd.sys (will have "scsi" entries in your boot.ini) you must also update that to a Windows 2000 or XP version.

Done. You can now reboot the system and see if it boot's up OK. With the Windows 2000 or XP bootstrap loader your Windows NT 4.0 machine can have a system partition of 2TB. This is the maximum partition value.

看起來蠻簡單的
可是不知道是怎麼改的


這些都是 “非” 官方的改法
後果自己負責