Basilis
if u know where the exe is for the IE get a program called unlocker it will unlock it from it bein locked on a system file and then u can proly end it after to
or u can just restart whole comp and then try and do it again and if ie still starts up when u reboot comp look into getin this program
http://technet.microsoft.com/en-us/sysinternals/bb963902.aspx
and look threw and untick ie that program shows everything that starts with the pc so