Install Windows 2000 on the Windowns XP machine installed

Because Windows XP is published after Windows 2000, software is not usually compatible with future versions, and if for some reason you install Windows on a machine that has successfully installed Windowns XP 2000, the latter will overwrite the hard drive's primary boot sector and the system files in the system disk directory, causing the previously installed Windows XP to fail to start. It is usually reported that:

Starting Windows ...

Windows could not start because the following file is missing or Corrupt:\windows\system32\config\system

Error, but the actual reason is not to lose what files, but windowns version 2000 of the boot file can not find Windows XP, even if you start Windows 2000 edit Boot.ini file, add Windows XP startup information is useless!

A simple study found that Windows 2000/XP startup relies on a few files Ntldr ntdetect.com boot.ini Bootfont.ini (font files, unimportant, which are the font files that choose which system to start on), Boot.ini can be edited, but: XP version of NTLDR Ntdetect.com can start XP, can also start 2000, and 2000 version of the Can not XP. So we follow before the above 4 files on one side can be, install Windowns 2000 when it is covered, after completion, will 4 file recovery, edit Boot.ini file, add windowns 2000 of a section on it!