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Common MS Windows Error Messages

Common MS Windows Error Messages

Page Faults:
Page Faults in Windows 9x are comparable to the General Protection Faults (GPF) in Windows 3.x. Page Faults often occur when something unexpected has happened within the Windows 9x environment. For example, a page fault can occur when a program attempts to access an improper memory address or tries to pass an improper parameter from the program to the Windows 9x operating system.

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Windows Protection Errors:
Windows Protection error message occur when your computer attempts to load or unload a virtual device driver (VxD). This error message is a way to let you know that there is a problem with the device driver. In many cases, the VxD that did not load or unload is mentioned in the error message. In other cases, you may not be able to determine the VxD that caused the behavior; however, you should be able to find the cause of the error message if you use clean boot troubleshooting.
support.microsoft.com

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Fatal Exception 0D (General Protection Fault):
Any condition that is not covered by any of the other processor exceptions will result in a general protection fault. The exception indicates that this program has been corrupted in memory, usually resulting in immediate termination of the program.


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Invalid Page Fault Errors:
An IPF can occur when an unexpected event has occurred in Windows, for example a program improperly attempted to use random access memory (RAM) or the virtual memory area is corrupted by a program, or a program is attempting to access data that is being modified by another program that is running.
support.microsoft.com

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General Protection Faults:
Computer crashes are caused by something unexpected happening in your computer while a program is running. The cause of any given computer crash is often very difficult to track down, but the error messages you may see usually give a good indication of what happened. When a GPF or IPF happens, it is often because the operating system, Windows in this case, has tried to store some information in a location that is being used by another program.
But why does this happen? The operating system is constantly reading information, programs, applications, documents etc. As it reads a file it stores it in different places depending upon what it thinks you are going to need next. As you surf the Internet, it is constantly downloading information, storing it to your cache and reading it into RAM, pulling it out of RAM and storing it in your swap area (the information that Windows itself stores to disk).
This is usually a very fluid process with information moving around at incredible speeds, but occasionally, the operating system loses a piece of memory. An area of memory is moved but the pointers to the information are not changed. In a sense the information in memory leaks out without being tracked. Since Windows does not know where this information is, it tries to store some other information on top of the already-occupied location, which causes a GPF or IPF.

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Fatal Exception 0E (Page Fault):
The Page Fault interrupt allows the operating system to implement virtual memory on a demand-paged basis. An interrupt 14 usually is issued when an access to a page directory entry or page table with the present bit set to 0 (Not present) occurs. The operating system makes the page present (usually retrieves the page from virtual memory) and re-issues the faulting instruction, which then can access the segment. A page fault also occurs when a paging protection rule is violated (when the retrieve fails, or data retrieved is invalid, or the code that issued the fault broke the protection rule for the processor). In these cases the operating system takes over for the appropriate action.

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