How to solve Boot prompt loader error 3?

When a computer turns on the next day, the screen appears as follows: Windows could not start because of the sofrware. Please make this problem as:loader error 3.Please contacts your support person to the "this problem." This is generally a software problem, after installing the software Cause boot failure, the solution is to enter the PE maintenance system, replace the boot file NTLDR on the line

1, first to install the same version of the XP system, choose to display all the files, and then in the system disk, generally C disk, find NTLDR files, copied to the U disk for replacement

2, restart the computer, the power-on when the Dle key or F2 key, this to the actual motherboard button, then not all motherboards are the same, I can only operate according to the actual situation

3, find the setting of the order of the boot device, click on the following hard Drive BBS priorities

4, then select the first row, press ENTER to change the first hard drive order, the default will not be guided U priority

5, and then set the boot disk as the first boot of the hard disk, return to the previous level and then set as a priority start

6, press the shortcut key F10, or page to the last option Save & exit, Save Settings exit

7, then wait for U disk to start, into the PE maintenance system, and then replace the NTLDR file copy to C disk

8, Pop-up prompts to choose [Copy and Overwrite], this XP system will be able to boot up the normal

Note: The boot file is changed, the language settings are missing, and later prompts will only be displayed as English