GPG4Win is described as 'Gpg4win enables users to securely transport emails and files with the help of encryption and digital signatures. Encryption protects the contents against an unwanted party reading it. Digital signatures make sure that it was not modified and comes from a specific sender' and is a popular file encryption software in the security & privacy category. There are more than 10 alternatives to GPG4Win for a variety of platforms, including Windows, Linux, Mac, OpenPGP and Web-based apps. The best GPG4Win alternative is GnuPG, which is both free and Open Source. Other great apps like GPG4Win are Kleopatra, GPGTools, Lock GnuPG and gpg4usb.
Extremely easy to use and doesn't crash like GPA