In IE, Tools, IE Options, Advanced, & under "Navigation" Uncheck:
"Activate install on demand" (Other) , and, "Activate install on demand" (Internet Explorer)
And make sure that you are using a firewall.
If you only use IE6 to update your system with then you can use Opera 7.52 for your internet working.
Opera has a built-in pop-up stopper. See: Opera, Options.