If you're thinking about upgrading to Windows 10 then you might want to consider the impact it will have on your online privacy and what is happening to your personal information. Check out : http://www.theguardian.com/technology/2015/jul/31/windows-10-microsoft-faces-criticism-over-privacy-default-settings and http://www.independent.co.uk/life-style/gadgets-and-tech/news/windows-10-spying-how-to-opt-out-of-microsofts-intrusive-terms-of-use-10432300.html for details. I, for one, won't be updating from Window 7 for quite a while if ever.