Windows XP shuts down... on antivirus scan

Windows XP shuts down... on antivirus scan

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Subject Author Date
Windows XP shuts down... on antivirus scan Francesca Baslen 03-30-2007
Posted by Francesca Baslen on March 30, 2007, 5:17 am
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Hello,

A few says ago my Windows XP session suddenly shut down.
I immediately started a complete system scan (with Norton Internet
Security), but XP shut down again during the scan. I tried again in safe
mode - same thing!
My impression was that when the AV scan arrives at a certain file, the
system shuts down. I unistalled NAV and installed Avast. The first scan
upon install was performed to the end (no virus found), but shortly
afterwards Windows shut down again.
Each time this shutdown happened during or just after a system scan,
when Windows restarts and the hard disk is checked, I get messages
telling me that the "allocation unit size is incorrect" for a few files
related to antivirus (either Norton at my first attempt, then Avast).

Has anybody any idea regarding this issue?

FB

Posted by Leythos on March 30, 2007, 8:07 am
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On Fri, 30 Mar 2007 11:17:10 +0200, Francesca Baslen wrote:

> Hello,
>
> A few says ago my Windows XP session suddenly shut down.
> I immediately started a complete system scan (with Norton Internet
> Security), but XP shut down again during the scan. I tried again in safe
> mode - same thing!
> My impression was that when the AV scan arrives at a certain file, the
> system shuts down. I unistalled NAV and installed Avast. The first scan
> upon install was performed to the end (no virus found), but shortly
> afterwards Windows shut down again.
> Each time this shutdown happened during or just after a system scan,
> when Windows restarts and the hard disk is checked, I get messages
> telling me that the "allocation unit size is incorrect" for a few files
> related to antivirus (either Norton at my first attempt, then Avast).
>
> Has anybody any idea regarding this issue?

You "could" have malware on your machine, but, it's also possible that
you've got a bad drive or that your computer is over heating - have you
checked the fans to make sure they are clean of dust? How about the CPU
heatsink, it needs to be cleaned also? How about the front/back/side vents
on your computer case?

If both of those (norton and avast) say you're clean, then there is a good
chance that you've got other problems.

Have you tried running a scan in Safe Mode?

--
Leythos
spam999free@rrohio.com (remove 999 for proper email address)

Posted by Mees de Roo on March 30, 2007, 6:05 pm
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How about checking the disk for errors (chkdsk from cmdcons - or graphically
from the disk-properties menu). 9 out of 10 that's sufficient! I wonder why
and when they stopped running that automatically after a system crash, but I
have not seen it for quite a while.

Mees de Roo

> On Fri, 30 Mar 2007 11:17:10 +0200, Francesca Baslen wrote:
>
>> Hello,
>>
>> A few says ago my Windows XP session suddenly shut down.
>> I immediately started a complete system scan (with Norton Internet
>> Security), but XP shut down again during the scan. I tried again in safe
>> mode - same thing!
>> My impression was that when the AV scan arrives at a certain file, the
>> system shuts down. I unistalled NAV and installed Avast. The first scan
>> upon install was performed to the end (no virus found), but shortly
>> afterwards Windows shut down again.
>> Each time this shutdown happened during or just after a system scan,
>> when Windows restarts and the hard disk is checked, I get messages
>> telling me that the "allocation unit size is incorrect" for a few files
>> related to antivirus (either Norton at my first attempt, then Avast).
>>
>> Has anybody any idea regarding this issue?
>
> You "could" have malware on your machine, but, it's also possible that
> you've got a bad drive or that your computer is over heating - have you
> checked the fans to make sure they are clean of dust? How about the CPU
> heatsink, it needs to be cleaned also? How about the front/back/side vents
> on your computer case?
>
> If both of those (norton and avast) say you're clean, then there is a good
> chance that you've got other problems.
>
> Have you tried running a scan in Safe Mode?
>
> --
> Leythos
> spam999free@rrohio.com (remove 999 for proper email address)



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