from first link... i tried the following..
I'm using WinXP Home
My solution was:
Start > All Programs > Accesories > System Tools >
Internet Explorer (No Add-ons)
then using this browser page go to the runonce link
http://runonce.msn.com/runonce2.aspx
This should finally open the runonce page and allow u to select the
settings u prefer, for example change the Search Utility to
Google.
Click on SAVE at the bottom.
hope this works 4 u too!
but also cannot... the rest all too chim for me.. 