Hello, In my windows 8 machine, am unable to update KB2770917. When I turn on the windows 8 machine, there will be a message in the notification that an update KB2770917 is found, I clicked on the update then click on download update then the install process will begin, asks for reboot, then I will reboot manually, the installation process will fail at 15%. Then the system restarts and again the update found message will be displayed in the notification bar, and the same procedure will continue if I click on update. So tell me what is the solution for this, and how to update KB2770917 from my computer. Please reply soon, thank you.