Restrict users to enter the drives (d:\, e:\ etc) on your system..

Follow these steps to block other users to enter your drives..

Go to --> My Computer -->
Right Click on D Drive (the drive u want to block) and Click Properties

--> On security tab ---> Click Advance---> Remove All users and Add those people u want to allow--->Mark the below line (replace permission....................)

---> On Owner tab ---> Select the user and mark the below line---> Apply ----> Ok

---> Go to Security tab on properties of D Drive ---> Add Those people u want to allow and set their permissions below......----> Apply---->Ok