How to enable/turn on Bitlocker drive encryption in Windows 7 Professional
Although there is no Bitlocker drive encryption feature in Windows 7 Professional, but we can turn on Bitlocker in Windows 7 Professional with following solutions:
Solution 1: Upgrade Windows 7 Professional to Windows 7 Ultimate
Windows 7 Home, Windows 7 Home Premium and Windows 7 Professional don't have Bitlocker drive encryption feature, but Windows 7 Ultimate and Enterprise have this feature.
Solution 2: Using the 3rd-party tool
M3 Bitlocker Loader for Windows is a free Bitlocker solution which can turn on Bitlocker drive encryption feature in Windows 7 Professional and Windows 10/8/7 Home.
Bitlocker for Mac
M3 Bitlocker Loader for Mac is a simple tool to unlock, read, write, create, mount Bitlocker encrypted drive on macOS Mojave/High Sierra/Sierra and Mac OS X 10.11 (El Capitan), 10.10 (Yosemite), 10.9 (Mavericks), 10.8 (Mountain Lion), 10.7 (Lion).
Bitlocker for Linux
M3 Bitlocker Loader for Linux is a command tool to mount, read, write, create Bitlocker encrypted drive in Linux/Ubuntu.