When comparing BitLocker vs ecryptfs, the Slant community recommends ecryptfs for most people. In the question“What are the best file encryption tools?” ecryptfs is ranked 10th while BitLocker is ranked 12th. The most important reason people chose ecryptfs is:
The entire user home directory or folder inside can be encrypted and unlocked during login.
Ranked in these QuestionsQuestion Ranking
Pros
Pro Native Windows support
It offers the best integration, ease of use and support with Ultimate and Enterprise editions of Microsoft's Windows Vista and Windows 7, and with the Pro and Enterprise editions of Windows 8.
Pro Volume-based encryption
BitLocker allows encrypting an entire volume including the OS.
Pro Multiple authentication methods
You can use a combination of methods consisting of Trusted Platform Module, PIN, and a passphrase on a USB thumb stick.
Pro Encrypt your home directory
The entire user home directory or folder inside can be encrypted and unlocked during login.
Cons
Con Proprietary
No public audits possible.
Microsoft could want or be legally required to puts backdoors without users knowledge.
Con Not available on Windows home versions
Con No single file encryption
Can't request a single file be encrypted.