Fatal Exception Errors- Explanation And Solution

In an attempt to shut down your computer, start Windows, or while starting a program in Windows, there can be error messages that are similar to:

A fatal exception AB has occurred at xxxx:xxxxxxxx

Actually fatal exception errors are the codes that are returned by a program in following cases:
If access to an illegal instruction has been encountered
If an invalid data or code has been accessed
In case the privilege level of any operation is invalid
In all the above cases, the processor returns an exception to the operating system, which is treated as a fatal exception error. In many cases the exception is non-recoverable and the system must be either restarted or shut down.

In the sample error message mentioned above, AB represents the actual processor exception from 00 to 0F. The xxxx:xxxxxxxx value represents the enhanced instruction pointer to the code segment; the 32-bit address is the actual address where the exception occurred.

Windows does not cause these errors, but has the exception-handling routine for that particular processor exception, which displays the error message.
Lets discuss one such error:

At the time of starting your Windows based system the below error can be experienced:

"STOP: 0x00000055 (parameter 1, parameter 2, parameter 3, parameter 4) DATA_COHERENCY_EXCEPTION"

The parameters differ according to the configuration of the computer.

Data stored in the hard drive becomes inaccessible after the above STOP error message occurs. In addition, you encounter the same error message each time you attempt to start your system.

Cause:

The root cause for the occurrence of above STOP error message is inconsistency between pages in the primary and secondary data caches.

Resolution:

Clean Boot Your Computer
Because there are many conditions that can cause a fatal exception error, the first step in resolving the issue is to narrow the focus. To narrow the focus, try a "clean boot" of your computer.

Clean-boot troubleshooting refers to methods of reducing problems that may occur because of your computer's environment. Many problems occur because of conflicting drivers, terminate-and-stay-resident programs (TSRs), and other settings that are loaded when your computer starts. For additional information about how to clean-boot your computer, click the following article numbers to view the articles in the Microsoft Knowledge Base:

In order to resolve of the above STOP error message, take these measures:

Remove the new hardware and reboot your system

Increase the RAM (Random Access Memory) and disk space of your system

Select Last Known Good Configuration option while rebooting your system. To do so, you need to press F8 when you see "Please select the operating system to start" message at system startup. Next, use arrow keys to select Last Known Good Configuration (your most recent settings that worked), and then press ENTER

If the STOP error message appears even after taking the above actions, then the best solution is to recover your lost data by using powerful hard drive recovery software. These Data Recovery Tools use effective scanning algorithms to recover lost data from a formatted hard disk. Built with highly interactive user-interface and automated recovery procedure, these hard drive recovery applications are easy to understand and use.

By: Robin Watson

Article Directory: http://www.articledashboard.com

Robin Watson a student of Mass Communication doing research on hard drive data recovery software . He is also a freelancer for www.windows-data-recovery.net/