Hitting SHIFT+F10 during Windows 10 upgrade is enough to elevate the user to SYSTEM

A really dumb (but serious) Windows 10 vulnerability On Mikko Hypponen’s twitter account i’ve read this twit: The linked article on Sami Laiho’s website exposes a vulnerability as simple as serious: if you hit SHIFT+F10 during Windows upgrade process you can obtain a command prompt with SYSTEM privileges. The installation …