When i boot my pc up, I am greeted with no startup login screen where you click and enter your password, but a cmd window titled "C:\WINDOWS\SYSTEM32\LogonUI.exe" saying the following, "Enter credentials for [USERNAME] or hit ESC to switch users/sign-in methods", "Password:". When I login through the prompt, it up is just a completely black screen that is luminated. No windows bar, nothing. I've tried CTRL ALT DEL, that just brings up another command prompt with the options, when I press task manager nothing appears. If anyone knows how to fix this, it would be greatly appreciated, Thanks. By the way, I am running windows 10 and have just installed the latest update KB3206632, after installation is when the problem began.