swipe screen problem

[XperiaE1bre]

i have a problem with lock screen
I cant sec on swipe or none, its say disable by administrator, encryption policy or credential storage
i tried to clear credentials, but dont help
in device administrators i disable android device menager, but still same
some solution?
its happend one week, i instal v4.4.2 android, since than

[Thommo]

Try performing a system repair as this will often fix issues after an upgrade - This will factory reset your phone

Switch off your phone and unplug from Pc (Hold volume up and power for around 10 seconds)
Start PC Companion and select Support zone then Update my phone/tablet then in Blue Repair my phone/tablet and follow the onscreen instructions - When prompted connect your phone still switched off holding volume down or back button - This should start the repair or reformat process

If you are using Windows 8/8.1 or a 64bit operating system then adjust the settings for PC Companion and run in compatibility mode and chose Windows 7 or XP

[tingu]

hii

i hve a sony xperia e1 D2005  whc i buyed last 6 monts ago n updated it to kitkat version after update "none and swipe" option is not working n it is disabled i tryed repair phone and contacted autorised sony service center in bangalore  but still it is not yet solved.  service center guys said i have to sign out Gmail  account  and try it. but still "none and swipe" is disabled. Please solve my issue.