How to fix ntldr is missing

Source: Internet
Author: User

Ntldr is missing, which is highly probable. After this error occurs, the system cannot be guided. The loss of ntldr files often means that they are accidentally deleted, or they do not know what the file is, and are cleared as junk files.

So what does ntldr do?

Ntldr is a file exclusive to the Windows NT operating system for operating system boot. If the file does not exist, the operating system cannot start properly. The file is stored in the root directory of the startup volume, which is generally c :\.

Ntldr responsibilities

1. parse the content of the boot. ini file.

2. Load the Windows NT kernel or give control to the bootsect. dos2 file to start Win9x or give control to other operating systems for boot.Code.

Use of ntldr

After ntldr is started, if hiberfil is found in the root directory of the system volume. if the Sys File is valid, ntldr reads hiberfil. information in sys and restore the system to the state before hibernation. At this time, the boot. ini file is not processed.

If the boot. ini file contains two or more startup options, ntldr suspends the system boot and allows you to select a startup option until it times out. The timeout value is set by the timeout value in Boot. ini. After the timeout, ntldr reads the information after default in Boot. ini and obtains the path of the Windows directory to execute the subsequent startup process.

Tip:

Press F8 to display the Start menu. You can select multiple start modes from the Start Menu. Ntldr sets different startup parameters based on user selection and uses the startup parameters to load the NT kernel.

New Feature of ntldr

Starting from Windows XP Service Pack 2, ntldr adds a new option: Disable Automatic restart when the system crashes (disable automatic restart on system failure ). You can press F8 to find this option in the Advanced Startup menu.

By default, Windows restarts automatically if a fatal error occurs. If you select this option,

If a fatal error occurs during Windows Startup, the blue screen information is displayed instead of the Automatic Restart setting.

Tip:

Install Windows XP with Service Pack 2ProgramDuring installation, ntldr and ntdetect. com will be detected

If you find that the current version is newer than the version on the installation source, the existing version is used instead of the version on the installation source.

 

Solution to this problem:

Boot with a CD to enterSystem Repair ModeOrReal DOS mode

Execute the command line:

Copy X: \ i386 \ ntldr c :\

Copy X: \ i386 \ ntdetect.com c :\

The above X indicates the disc symbol.

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