every so often avg detects trojan horse downloader.zlob.isq[color=#FFCC00] system volume information\restore.i try to move to virus vault but it says this action is not allowed,so i press ignore then it keeps popping up about 3 times before it goes.i thought i deleated it in safe mode until it come up today.thanls in advance for your great help on this forum

//Mod edit: Moved from Windows XP Home forum to the more appropriate.

It may be that the trojan has placed itself in a protected area of your operating system, such as your system restore files. Submit a HJT log file to our team of experts, who will help you get rid of zlob. The preparation instructions for doing this can be found here:
http://www.bleepingcomputer.com/forums/topic34773.html

Regards,
John