Thanks to Martin and LV. I appreciate your quick and accurate advice.
To NL. You preach and rant and then say you hate parents who do that. Mirror
time.
I did say that I learned these lesson from my own experience, so I'm
not in a position to preach to anyone. I'm just telling you that you
usually don't have to re-install your OS unless there is something
seriously wrong either with your protection or your kid's browsing
habits. My kids chat to mates on MSN and I've never had to re-install
the OS once.
I did once have to clean off a Trojan that appeared when my son
downloaded a program recommended by his best friend, whom I had not
realised was such an idiot.
It is possible there is some activity going on your daughter is not
aware of, maybe because she clicked on something and nothing appeared
to happen, and she forgot about it.
As to your supposed reply. All virus, spyware detection and firewall
software is current and up to date. Always. Yours?
Yes! I'm not the one on Usenet asking for help!
It's a she and she only uses Microsoft Messenger and does not download other
files on her PC. If she wants that she does it on my PC with my supervision
and agreement. So I suspect any nasties come through a Microsoft product.
And no she doesn't go to the nasty sites you talk about. Of course we
monitor what she does.
You said you 'suspect she get nasty files via chat' which suggests
you're not monitoring her that closely.
It is only my suspicion that there are nasty files through chat, which you
will note is Microsoft.
Get off your preaching soapbox and get a life.
Gimme a break - you complain your kid's system is so screwed up you're
constantly having to re-install the OS, and when a fellow parent tries
to offer you advice from their own experience about proper protection
for anyone using the Net you get all defensive and accuse me of
preaching. I'm not passing judgement on you or your offspring and I'm
not telling you what's right or what's wrong. I'm offering advice on
how to prevent this situation re-occuring.
(Go to a software forum and start a thread about any Net Nanny type
program. You'll find yourself barracked from all sides by idiots
telling you how to raise your children. That's what I can't abide and
that's what I was trying - clearly without success - not to do.)
A final note, on a completely different tack:
If you have had to reinstall the OS several times, and your daughter
has never given the XP authorisation number to someone else, and now
the authorisation routine is claiming that you cannot use this
validation number any more, you might have a hardware problem.
The validation number is generated by the machine itself from the
hardware in the box. If the system has not been changed substantially
then the same authorisation code should work every time. If the
routine keeps failing because it thinks it's finding different
hardware -ie thinks it's in a new machine - it could be a sign of a
faulty motherboard where components are failing.
This would account for bizarre system failures and constant
re-installs of the OS, without any dodgy software being downloaded
from anywhere by any user. So you might want to consider that.
Good luck.