random popups

[bridget_buri]

recently after returning home from school i have found that my mothers computer produces random popups claiming that the computer has errors and advertising regfix.net and other such things.
but for hte life of me i can't find the cause.
neither spybot nor adaware rids the computer of this bug AVG free doesn't detect any virus'
is anyone farmilliar with this problem? and the cause of it?

[classicsoftware]

I think you are infected with some kind of spyware. I would perform the following steps:

Download, install, update and then perform a full system scan with Adaware (http://www.download.com/Ad-Aware-SE-Personal-Edition/3000-8022_4-10045910.html?part=dl-ad-aware&subj=dl&tag=top5). Fix all critical errors.
Re-boot
Download, install, update and then perform a full system scan with Spybot (http://www.safer-networking.org/en/download/index.html). Fix everything in red.
Re-boot
If you have Windows 2000 or Windows XP, Please download, install, and update the NEW free version of Ewido trojan scanner (http://www.ewido.net/en/download/):


When installing, under "Additional Options" uncheck "Install background guard" and "Install scan via context menu".

When you run Ewido for the first time, you may get a warning "Database could not be found!". Click OK. We will fix this in a moment.

From the main Ewido screen, click on update in the left menu, then click the Start update button.

After the update finishes (the status bar at the bottom will display "Update successful")


Perform a full system scan and fix all that it finds.
Finally, download a copy of Hijackthis. (http://www.subratam.org/main/index.php?option=com_content&task=view&id=19&Itemid=41) Unzip into a permanent folder. Click on the icon and choose scan and create a log. Post the contents of the log here for review.