I have a really annoying problem. I am trying to disable that annoying lock screen but mu computer simply refuses to let me change the option. When I go into advanced settings and such all the settings to turn the password off are grayed out. When I go into the Win 8 settings - Users and go to click "anyone who uses this PC must enter a password" It has in red "Security policies on this PC are preventing you from changing this option".

How do I fix this? I have no idea which security policy its referring to out of that bazillion it offers.