Update: Read our latest post on Windows 10 – including news of a “free upgrade” pledge – by clicking here >>> Windows 10: 7 things to know   The start menu appears to be back with Windows 10, which Microsoft is expected to further show off on Wednesday 21 January 2015. Following the lukewarm, at best, response to Windows 8, Microsoft has decided to skip a number to Windows 10 – which some have argued is an attempt to differentiate its latest product.…