If a user subsequently registers with us, we link previous and subsequent activities on powertoolspares.co.uk to the current and future purchases. We only use the data collected for e-commerce functionality and for internal reports to monitor how our content is viewed and used along with its relative popularity. This allows us to make constant improvements for all of our website users.
When a website "sets a cookie" all the web server is does is returning a small, unique piece of text to your browser, along with the content that was requested. At no point can the Powertoolspares web server control what your computer does with this text - the storage mechanism and location is totally dependant on the user's web browser. Usually your web browser will allow you to specify where cookies are stored and will often have buttons to delete or view the cookies.