Well a year on from my first post with the 'locked home page' problem & everything is still fine. (longest the PC has been without hitches & having to format) i'm happy about that! The problem can lie with Spybot, & Nortons, but there are tweaks within these programs to easily rectify. My problem was totaly solved just by starting in safe mode, changing the home page to whatever then starting up in normal mode. The new chosen home page appeared but i couldn't change the home page to anything else. I then deleted from the registry: microsoft.com/isapi/redir...r=6&ar=msnhome.
The home page still couldn't be changed. But two weeks later everything was completely ok, all i had to do after deleting the above Reg key was to do a restart afterwards! But didn't realise this until i tried changing the home page a fortnite later.