pfn_list_corrupt & other problems causing frequent crashes

Hi

I have been getting several messages in event viewer after one of my
laptop's multiple daily crashes. One message is "The server
(C7E39D60-7A9F-42BF-ABB1-03DC0FA4F493) did not register with DCOM within the
required timeout." Another is "Hanging application iexplore.exe, version
7.0.6000.16915, hang module hungapp, version 0.0.0.0, hang address
0x00000000." Today, a new stop message occured 0x0000008e (0x00000005,
0xBF85GAAE....) Win32K address BF856AAE datestamp 49e87572. There have been
several other stop messages and event viewer messages. I have run virus
scans, malware, ram check, dskchk. Google suggested that the first message
relates to a problem with McAfee.

This is a 5 year old Toshiba A75 laptop running windows xp professional. It
has 1 G of ram and the hard drive is about half full.

Any recommendations?

Thanks in advance

Al Charbonneau

Al Charbonneau wrote:
Hi

I have been getting several messages in event viewer after one of my
laptop's multiple daily crashes. One message is "The server
(C7E39D60-7A9F-42BF-ABB1-03DC0FA4F493) did not register with DCOM within the
required timeout." Another is "Hanging application iexplore.exe, version
7.0.6000.16915, hang module hungapp, version 0.0.0.0, hang address
0x00000000." Today, a new stop message occured 0x0000008e (0x00000005,
0xBF85GAAE....) Win32K address BF856AAE datestamp 49e87572. There have been
several other stop messages and event viewer messages. I have run virus
scans, malware, ram check, dskchk. Google suggested that the first message
relates to a problem with McAfee.

This is a 5 year old Toshiba A75 laptop running windows xp professional. It
has 1 G of ram and the hard drive is about half full.

Any recommendations?

Thanks in advance

Al Charbonneau

Perhaps time to run a memory test ?

You can look up the 8E error here.

http://aumha.org/a/stop.htm

*******

Examples of memory testers -

http://www.memtest.org

http://oca.microsoft.com/en/windiag.asp

With memtest86+, test 5 is the most sensitive. And
two passes may be enough, as for things like load
sensitive faults, memtest86+ might not catch them. I
find memtest86+ is good for "stuck" faults, such as
a bad bit in memory, or a bad chip.

Another test, which is a combined memory and CPU test case,
is Prime95 torture test. It does a math calculation
with a known answer. It also uses a lot of RAM while
doing so. And that gives the ability to do additional
testing, in a manner more stressful than memtest86+.

So both programs have their uses, memtest86+ because
it comes as close as possible to testing all the memory,
and Prime95 stress test covers less of the memory, but
does so with more stress.

http://www.mersenne.org/freesoft/

You don't have to "Join GIMPs" when using Prime95, and
can use it just for stress testing. An execution thread
will stop when the first error is detected. I want
to see a four hour run without errors, before assuming
all is well. On a laptop, you'll want to remain on AC
while doing the test. And elevate the laptop, so the cooling
system can work at full efficiency.

HTH,
Paul