Thanks to the Bill Gates numbering system the next incarnation of windows will be number 10. After Windows 8 failed to meet standards, a lot of people, including myself have stayed on or reverted back to Windows 7 which has generally been a very stable OS. If it's not broken, why fix it? To combat the expected low sales uptake Microsoft have decided that Win 10 will be a free upgrade for people using 7,8 Phone & Xbox One but only in the 1st year it is released. Since Win XP, the popularity of the OS has gone in cycles of good, bad, good, bad. Hopefully this version will make right everything that 8 got wrong but just looking at the interface it's not really convincing me yet. I'm tempted to give it a go, mainly due to the price but as with any software these days the early months of any release are bug ridden and this free release is in effect just an open Beta test. It does have some good gimmicks but what will make or break the software is everyday functionality.