I want to remove the pattern lock I originally set. I went to settings>security>screen lock (pattern)>(confirm saved pattern)>then it goes the the screen for choose screen lock. The first two options, None and Swipe are grayed out and are not selectable. Only Pattern, PIN, and Password are selectable. Any suggestions? The information under None say "disabled by administrator, encryption policy, or credential storage" Not sure what I need to reset to work around it. Thanks!