Re: IE installation
I don’t have any such key either.
I am as inexperienced in this as you are, but after reading through a few forums, I have a few questions to ask :
Do you remember recently visiting any website with pop ups that caused IE to stop working?
Do you have multiple versions of IE installed ?
Give this a try: Boot in safe mode (with networking) and start IE. Does that work for you?
Here’s another thread that offers some explanation: Redirecting to Google Groups
Let me know how it goes.