I need a security program in windows(passwords)???????

Question

i need a security program in windows. i have three drive partitions (c,d,e) and i want to put a password on drive e:

also i tried the user special system provided in windows but didnot work out well as i need to switch those users again and again.

i have also heard about folder lock but i am not willing to spend money on it

Answer 1

truecrypt from http://www.truecrypt.org