TrueCrypt 7.1a

     TrueCrypt is a discontinued source-available freeware utility used for on-the-fly encryption (OTFE).  It can create a virtual encrypted disk within a file or encrypt a partition or (under Microsoft Windows except Windows 8 with GPT) the entire storage device (pre-boot authentication).Truecrypt 7.1a is the last full-functioning version of the software. Our instructions for installing and encrypting files with TrueCrypt 7.1a are here for reading or download.