I have just had a blue secreen with lots of information that I did not have time to read. It then switched itself off. I am not sure how to investigate, whether it is virus related or OS problem. I have XP SP3.
Any help appreciated
qim
We need more information besides the dog…
Operational system
BSOD (blue screen) error number
Other installed software that could conflict with avast (antivirus, firewall…).
What’s the result of a full avast scanning
Recently added hardware…
I did nor mange to read the blue screen info, but the event viwere mentions DHCP event 1000.
I downloaed, yesterday, prior to blue screen MS update (KB2541763)
Recent scans did no show anything negative
Thanks
qim
LOL - What’s the poll for…??? ;D
I vote for Lucy! ;D
I vote for Brown. It seems only you and I voting this at this time being.
It’s for the sake of fun I guess 
Well, the blue escreen came back with the latest “Windows Update”. Despite all the intelligent comments that followed my original post, it does seem as somethig strange (virus?) is trying to interfre with the updates.
Any sensible comment would be appreciated.
Thank you
qim
I have just noticed Tech’s answer, which I appreciate. I have XP Home SP3; Avast Free; Outpost Free.
I have scanned the system not only with Avast but with various other progs and accordingl the computer is clean.
The blue screen does not stay on long enough for me to read what it says as the computer restarts. Both times it happened, if I recall well, was in the process of updating Window.
Thank you for your help. Obrigado.
qim
Don’t worry, gentlemen, I’ll join you here. Lucy ftw!
It seems that I’m the only one voting for Brown 
It’s quite difficult to comment sensibly if you post a question with such things for vote…
Qim, check the folder C:\ProgramData\Avast Software\Avast\log
Are there any files called unpXXXX (where XXXX is a random number) or *.mdmp there?
If so, send them to
http://www.mailonpix.com/images/0da0c5e21c19d4858c8994a82e79b7d0.gif
They may contain more information about the problem (maybe a link to this thread).
Vlk explains how to create a dump file here: http://forum.avast.com/index.php?topic=22636.msg187340#msg187340 and here: http://forum.avast.com/index.php?topic=23283.msg193594#msg193594
To create the dump, download and run http://public.avast.com/~vlk/hangrep.exe . In the list of processes select it and use the Save button. This generates a file which you can either send to his email address vlk (at) avast.com (if it’s smaller than e.g. 1 MB, ZIPed), or upload to ftp://ftp.avast.com/incoming
The command-line version http://public.avast.com/~vlk/userdump.exe . The syntax is
userdump.exe <program_to_dump>.exe c:<report_name>.dmp
(producing dump file in the root of C:\ drive)
Please note that prior to taking it, you’ll have to temporarily disable avast self defense - otherwise, the program responsible for creation of the dump won’t be able to open the process.
If you’re facing full BSODs, please, go to folder \windows\minidump and send the newest (recent) .mdmp files for analysis.
There is also C:\Windows\Memory.dmp file.
Better if you can compress (zip), rename it with an unique name, them and add some information about the BSOD and the link for this thread.
Upload it to this anonymous ftp server: ftp://ftp.avast.com/incoming/
To generate full dump instead of only kernel (or small dump), see http://www.msfn.org/board/creating-memory-dumps-t130005.html.
Hi Tech
Unfortunately, I had another blue screen this afternoon and I decided to take the earlier advice and uninstall Avast and install Security Essentials to see if it solved the problem. Therefore, I no longer have an Avast folder…
I am going to send the minidump related to this afternoon’s crash to the ftp.server you mentioned.
Um abraço
qim
Hi Tech
I pasted the Minidump in the page that opened in the ftp.server. I thought I had to press some ‘Send’ button but could not see any. Can you confirm that you received it, please?
Obrigado
qim
I’m an user like you. I can’t confirm. We, users, have only write access to the ftp, not read.
Which is the file name?
Mini072411-1.dmp
qim