Virtual Disk Utility is a neat and simple freeware application to create and manage virtual disks on Windows. The Virtual Disk Utility provides a new means of managing files and data in a secure and portable manner. It does so by providing a mountable, encryptable, cross-platform file for the storage of data and documents. It utilizes an easy-to-use interface that allows you to manage or creating new virtual drives with ease and you can unmount the drive any time by disconnect function.
The drive may be encrypted with a passphrase to provide security for sensitive data, and it has the ability to expand and shrink automatically, so that it makes efficient use of storage resources. You can also easily mount an existing disk in case you are already using it.
The utility works well on Windows 7, Vista and XP, both 32 bit and 64 bit versions.