On Wed, 28 Sep 2005, Claudia Satori wrote:

Technical information:
***STOP:0x0000007F  (0x0000000D, 0x00000000, 0x000000000, 0x00000000)

MS has at least one KB dealing with Norton Antivirus [gee, why am I not surprised? :) ] causing this BSOD on a 7800 series Pavilion. <http://support.microsoft.com/default.aspx?scid=kb;en-us;316526>

According to this other MSKB, it would seem to be a software issue, based on the first parameter (0D).

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<http://www.microsoft.com/resources/documentation/Windows/XP/all/reskit/en-us/Default.asp?url=/resources/documentation/Windows/XP/all/reskit/en-us/prmd_stp_ukdq.asp>

 Stop 0x0000007F or UNEXPECTED_KERNEL_MODE_TRAP

The Stop 0x7F message indicates that one of three types of problems occurred in kernel-mode:

* A condition that the kernel is not allowed to have or intercept (also known as a bound trap).
  * Software problems.
  * Hardware failures.

Interpreting the Message

This Stop message has four parameters:

   1. Processor exception code.
   2. This value is 0x00000000 (zero).
   3. This value is 0x00000000 (zero).
   4. This value is 0x00000000 (zero).

The first parameter is the most important and can have several different values, indicating different causes of this error. You can find all conditions that cause a Stop 0x7F in any x86 microprocessor reference manual because they are specific to the x86 platform. Here are some of the most common exception codes: [snip]

Less common codes include:

    * 0x00000001: A system-debugger call.
    * 0x00000003: A debugger breakpoint.
    * 0x0000000A: A corrupted Task State Segment.
    * 0x0000000B: An access to a memory segment that was not present.
    * 0x0000000C:An access to memory beyond the limits of a stack.
**** 0x0000000D: An exception not covered by some other exception; a protection fault that pertains to access violations for applications.

Resolving the Problem

The following suggestions are specific to Stop 0x7F errors. For additional troubleshooting suggestions that apply to all Stop errors, see "Stop Message Checklist" later in this appendix.

* Stop 0x7F messages are typically due to defective, malfunctioning, or failed memory hardware. If you added new hardware recently, remove and replace it to determine if it is causing or contributing to the problem. Run diagnostics software supplied by the system manufacturer to determine if the component has failed. * Running the CPU beyond the rated specification, known as "overclocking," can cause Stop 0x7F or other error messages due to heat buildup. When diagnosing problems on overclocked systems, first restore all clock and bus speed settings to the manufacturer recommended values to determine if this resolves the issues. * The problem might also be due to cracks, scratched traces, or defective components on the motherboard. If all else fails, take the system motherboard to a repair facility for diagnostic testing. * Stop 0x7F messages can occur after installing incompatible applications, drivers, or system services. Contact the software manufacturer about possible Windows XP Professional-specific updates. Using updated software is especially important for backup programs, multimedia applications, antivirus scanners, and CD mastering tools.
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