Go to Settings
Select Apps->All
Select Google Play Store
Select Force Stop and Clear Data
Go back to ALL and select Market Updater (If you do not see Market Updater on list, skip to Google Services Framework step)
Select Force Stop and Clear Data.
Go back to ALL list and select Google Services Framework Select Clear Data
Turn your device off
Go to settings after google, delete one of your email account s simply clicking on it which gives you an option to delete the account, then you have to work 100% secure.