Formatting the hard drive would do it, Doire_Bhoy, but I'm sure you know that, so what are the full circumstances, are you dual booting with another OS for example? A little more background to the problem would help.
Xiaomi Mi Mix 2 review
See mcbess's iconic style animated for Mercedes-Benz
iPhone X news: Release date, price, new features & specs
Black Friday 2017 : date, sites participants & bonnes affaires