<p>The migration of Hotmail users onto Microsoft's new Outlook.com email client is now in full swing, but the software giant's decision to automatically upgrade users seems to be taking many by surprise.</p><p>The switchover has been heavily publicised in the press and through email alerts from Microsoft to existing Hotmail customers, since the automatic upgrade process was first announced in February.</p><p>Even so, a quick search of the terms "Hotmail" and "Outlook" on social networking site Twitter throws up hundreds of disgruntled responses from users who claim to have logged into Hotmail, only to be greeted by the new Windows 8-like user interface of Outlook.com.</p><p>However, Microsoft has confirmed, because the Hotmail brand is being retired, switching back from Outlook.com will not be possible.</p><p><a href="http://www.itpro.co.uk/email-clients/19381/hotmail-outlook-upgrades-take-users-surprise">Keep reading...</a></p><p>Read also:</p><p><a href="http://www.news-journal.com/features/entertainment/email-better-not-revolutionary/article_11a83871-c999-58bc-a50e-eb96ccd6c85d.html">Email better, not revolutionary</a> (Longview News-Journal)</p><p>Explore: <a href="http://news.google.com/news/more?ncl=dZp87dmHBCLc0HMY3rrbFK3_jckFM&ned=us">7 additional articles.</a></p>