I know that others have posted for this error message, but they don't seem to fit my problem.  I have Microsoft XP and recently downloaded I.E. 8.  Since then, I cannot get into IE, or if I click on a link from email or MSN, I get this error message.  I have had this once before, and I think has SOMETHING to do with my security system. However, I don't remember what I did to fix it.  Any help I can get, I will be most thankful.  I also have Symantec from NOrton t oprotect my computer.  I also installed ReCur to clean out my processing.  Neither one detected a virus or noted anything wrong with my system. 1. Don't touch anything like RegCure, or next thing you know, you have to reinstall Windows.
2. Uninstall IE.
3. ....and my best advice - switch to another browser, like Firefox.Yes as Broni SAYS Uninstall the UPDATE and if you intend to use IE you should Update it to IE8 its much more secure than IE 7
so Re-Download the Client and run the install proccesss again

When installing things it helps if your PC is running as little as possible to make sure theres no ERRORS so make sure you close all other applications while you install IE8

You may Also Want to use Fire FOX or Chrome as a back up Browser.