When you start your Windows NT 4.0 / Windows 2000 / Windows XP computer, the boot process fails with:
NOTE: Windows XP will restart immediately.
This can be caused by a missing or corrupt Ntdetect.com.
If you have a boot floppy, you can use it to start the computer and copy the file from another computer or the CD-ROM.
Windows NT 4.0Perform an Repair, selecting select Inspect Startup Environment.
Windows 2000 and Windows XP1. Start the computer from the Windows 2000 or Windows XP CD-ROM.
2. Select R at the Welcome to Setup screen.
3. Select Manual Repair.
4. Select only Startup Environment.