100% of them have numerous pop-up windows.
80% of them have misleading keywords for searching.
90% of them slow.
50% of them suck too much.
Try this to edit Regedit:
1) find the Internet Explorer item uder HKEY_CURRENT_USER ->Software->Microsoft in the Registry Edit Window
2) right click "Internet Explorer" and choose Permissions
3) choose the Administrators user group and make sure that the "Deny" check boxes are not checked
4) after that you can modify
Just a guess, may not work at all.