I’m hoping you can tell me why all the sudden my homepage automatically defaults to http://www.google.co.uk/. It used to default to www.google.com. My default page was listed as google.com, now it shows “.com.uk†when I change it to “google.com†I receive an error. Can you please assist?
It's very normal. Google redirects it to your default home country url. I'm from India and google redirects google.com to google.co.in for me.
That redirect is normal and if you want to go to google.com, click the link that appears in your .co.uk page