Do you not have administrative access at all or are you just not able to logon to the default "Administrator" account? Most of this will not work if you are logged onto a "limited" XP account... Also, are you on a network? You seem to have a worm that spreads using network shares. http://www.sophos.com/virusinfo/analyses/w32rbotvj.html http://www.sophos.com/virusinfo/analyses/w32rbotiy.html Run HijackThis, do a scan, and place a check next to the following items to be fixed: R0 - HKCU\Software\Microsoft\Internet Explorer\Main,Local Page = R0 - HKLM\Software\Microsoft\Internet Explorer\Main,Loc