What is Windows Fatal errors and how to fix?

fix fatal errorFatal Error occurs when users attempt to shutdown the computer, start Windows, or start a program in Windows then you may encounter error messages such as:

A fatal exception XY has occurred at xxxx:xxxxxxxx

Fatal errors are codes that returned by the program in following cases:
• If the users encountered accessed to illegal instruction
• If invalid data or code has been accessed to
• The privilege level of any operation is invalid

If any of these above cases occurs the processor returns an exception to the operating system which in turn is handled as fatal exception error.

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Description and Symptoms

The error messages, warnings, alerts and symptoms are related to this error.

Symptom 1: Fatal error while reading boot.ini

If you are attempting to boot up your Windows PC this fatal error may be exhibited by NTLDR, which restricts the computer from successfully starting up.

NTLDR: Fatal Error 1 reading BOOT.INI

Both NTLDR and BOOT.INI error are very crucial components of Windows boot process:

BOOT.INI helps to store all the list of installed operating system and the NTLDR is used in generating boot time menu that offers the selection of an OS. Some of these errors are as follows:

  • NTLDR: Fatal Error 256 reading BOOT.INI
  • NTLDR: Fatal Error 4096 reading BOOT.INI
  • NTLDR: Fatal Error 512 reading BOOT.INI
  • NTLDR: Fatal Error 2952 reading BOOT.INI etc.

Causes behind the occurrence of these Errors

Cause 1: Due to corruption caused in Boot partition

If Windows Boot Partition gets corrupted the “NDLDR: Fatal error in reading boot.ini” this error occurs when configuration settings in boot.ini is in the attempt of booting the Windows XP installation.

Corruption may occur in the boot partition may be result of unsafe writes on the boot partition, interrupted writes, sudden power loss that prevents some or all the contents from being read properly.

Cause 2: Due to compressing of BOOT.INI file

When users are attempt to compress the disk of the boot drive then in this attempt to reclaim the disk space or free up space use the disk space then this may accidentally compress the boot.ini in this process.

This may happen with the software such as DoubleSpace, 3rd party file compression software or DriveSpace that compresses the NTFS File.

The partition compression is the most primary cause of this error “NTLDR: fatal error reading boot.ini” when the error is number 1.

Cause 3: Fragmented BOOT.INI file

The cause of the “NTLDR: Fatal error in reading the boot:ini” on the Windows excessive disk fragmentation.

The NTLDR expects the files to load and read part of XP boot procedure that is to be stored continuously on the disk (files are stored consecutively in blocks in the file system and not spread around).

The fragmented dependency of files for NTLDR in case of fragmentation of boot.ini can result to occurrence of this error.


To Resolve and Troubleshoot this Behavior you Need to Use:

Method 1:

1. Firstly restart the computer
2. Then will notice “Please select the operating system to start” message will be displayed on the screen. Then Press F8.
3. Then on the Windows Advanced Option Menu list select the “Last known Good Configuration” by using the Arrow keys and press Enter.
4. Use the Arrow Keys to select the Microsoft Windows version in the “Please Select the Operating System to start” list and then press Enter to start your Windows.registry errors and how to fix Registry

Method 2:

1. Quit the Setup and then start the computer in MS DOS mode by using the startup disk that is created by the earlier version of Microsoft Windows.
2. Then on the Command Prompt, type scanreg/fix and then press on Enter key.
3. Then restart again the computer in the normal mode.
4. Uninstall any programs that are reporting problems. To do this makes use of Add and Remove Programs utility in the Control Panel.
5. Then Run the Setup again from the Windows XP installation CD-ROM.

Method 3: Remove all other Programs

If the above all methods still fails to resolve the problems you are getting with your computer then you may quit the Setup and go back to your previous operating system and then remove the program that are causing problems with the help of Disk Cleanup programs. And then run the Windows Setup again.

To do so you need to again restart your computer and then click on “Cancel Windows Setup”. If this option is not getting displayed on the screen then restart again the computer and resume the Setup.

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