When Microsoft updates or issues an ‘end of life’ date for a version of Windows it can be pretty big news. Only a few days ago we learnt that Windows 7 will not be installed on new consumer PCs from October but it’s still not had its card marked for business and enterprise machines. Also we have the end of extended support for Windows XP to look forward to in April. However other OSes and computer systems stop being supported and become more vulnerable to attacks, viruses and exploits – even your shiny new “always up-to-date” Chromebook.