Restrict user to select * from sys.tables,sys.databases ?

I need urgent help regarding permissions:
How can i apply Deny Permission regarding sys.database and sys.tables etc to users ?

Restrict the the user for viewing,updating,inserting,selection and creation of tables ,stored procedures,views ?
Restrict user to access only specified database ?

I have done above successfully except below :

Restrict user to excute query like i.e. select * from sys.database or sys.tables and any other query that user can execute and know the database schema ?

as users can get list of tables and known the column names which i can't allow.

Windows authentication not allowed ?

kindly help me out :(