When comparing GNU Privacy Guard vs BitLocker, the Slant community recommends GNU Privacy Guard for most people. In the question“What are the best file encryption tools?” GNU Privacy Guard is ranked 1st while BitLocker is ranked 18th. The most important reason people chose GNU Privacy Guard is:
GPG works on OS X, Linux, and Windows with [extensive selection of wrappers](https://www.gnupg.org/related_software/frontends.html).
Ranked in these QuestionsQuestion Ranking
GPG works on OS X, Linux, and Windows with extensive selection of wrappers.
Pro Multiple types of encryption algorithms
GPG supports public key cryptography (RSA EIGamal, DSA), symmetrical key algorithms (Blowfish, AES, IDEA, etc), cryptographic hash functions (RIPEMD, SHA), and compression (ZIP, ZLIB, BZIP2).
Pro Supports paired keys
Allows for encrypted communication.
Pro Volume and individual file encryption
With GPG you can encrypt you whole volume or files individually.
Pro Supports expiring signatures
GPG keys by default expire after a set amount of time. The amount can be changed and this feature can be turned off.
Pro Both CLI and GUI versions available
GPG can be installed as a command line tool, or you can choose between several different GUI frontends available for it.
Pro Open-source and battle-tested
GPG is the oldest and most reliable encryption software available.
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 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.
Con It may be hard to find a GUI frontend that suits your needs
If you decide not to use the CLI version of GPG, it may be hard to find a GPG GUI version that suits your needs simply because of the sheer number of different versions available.
No public audits possible.
Microsoft could want or be legally required to puts backdoors without users knowledge.