Internet Explorer tag

Hi all,
On my Internet explorer window at the very top of the window (the blue bar thats above file, edit, view etc and to the left of close, minimize and restore) there is the usual writing depending which site I am on but next to that writing is the name of the shop where I got Windows re-installed.
So for example if I went to www.google.com the blue bar would have the writing;
Google - Powered by PC shop

Does anybody know how to get rid of Powered by PC shop?

 

Download THIS file from Doug Knox to your desktop.

Close Internet Explorer, then double-click on the file (if it asks you, select YES) then restart IE.