DriveEncryption is the best encryption and decryption solution. It's easy to use and can encrypt Flash USB Memory, Removable Storage or fixed drive which are using FAT or NTFS File System so faster that few seconds is enough for encrypting or decrypting 200GB Hard Disk.

Feature Highlights

Almost support all kind of Removable, Fixed storage drive and Memory Card
It has ability to encrypt for each Logistic Disk
Encrypt or Decrypt multi-disk at same time
Create Rolling Back File before encrypting or decrypting. It's very useful and let you can recover all data on the disk even if Windows System crashes accidentally due to other software's problem when the target disk is encrypted or decrypted. Only DriveEncryption provides this highlight feature and keeps your data 100% security !
Encrypt Boot table and File System
Support all Windows File System : FAT12, FAT16, FAT32, and NTFS
Encryption Algorithm : 256 Bits AES, High Security Level
Supported Maximum Storage Capacity: No limits. Support all drives in your Windows System

System Requirement
Supported Operator System: Win95, Win98, WinMe, WinNT, Win2000, WinXP, Windows 2003
File System : FAT12, FAT16, FAT32, NTFS
Win2000, WinXP or Windows 2003 is recommended.