Sentry 2020/CE is a System Utilities::File & Disk Management software developed by SoftWinter. After our trial and test, the software was found to be official, secure and free. Here is the official description for Sentry 2020/CE: Sentry 2020 provides encrypted virtual volumes. All information (files, folders, file system structures) stored on a Sentry volume is transparently encrypted/decrypted every time an application performs a read/write operation on the volume. Without a correct password, Sentry volume is just a large file with encrypted contents. When the correct password is provided, the volume is mounted, and appears as a drive letter (Windows XP/2000/NT) or as a folder in the root directory (Windows CE). Any application can then work with the contents of the mounted Sentry volume without noticing the encryption being performed on the fly. you can download Sentry 2020/CE 2.8 free now.