I have a problem with my Asus MemoPad HD7. At the beginning I didnt have any screen lock on my tablet. But today when I wanted to install certificates to wifi at my University I was asked to set a "pattern" screen lock. After this I have to put this pattern to use my tablet. When I go to:
I can't choose "none" option. I can't choose slide and face unlock also. All of them are written in green and below each of one is written:
"Disabled by administrator, encryption policy or credential storage"
What do I have to do now to disabled any screen lock option?