Can't deactivate screen lock

[Soefarer]

The option of switching off screen lock is light gray in my settings, prompting "disabled by administrator, encryption policy or credential storage". What can I do to switch off the screen lock?

[_alexdon_]

Check the apps you have set as administrator under settings - security - device administrators. Reply with the names. You might also have an exchange account set up which enforces you to use PIN or some other measure of security.

[Soefarer]

In Device Administrators the only app that was ticked was Protection by my Xperia. I released it, nothing is ticked now, but the problem persists.

[_alexdon_ · Accepted solution]

In this case, you should go to settings - security and try to clear credentials and/or take a look if you haven't added a guest account.

[Soefarer]

That worked, thank you. By error, I accepted my last question as solution. Can't find how to undo that, I'm sorry!

[_alexdon_]

Anytime.