System Requirements

Gpg4win runs on Windows versions 7 or newer (including Windows 11). Both 32 and 64bit systems are supported. If you have at least Windows XP, some parts of Gpg4win can be used, but are not officially supported.

The Outlook add-in GpgOL is compatible with Microsoft Outlook 2010, 2013, 2016, 2019, Office 365 and 2021 (both 32 and 64bit) and supports transporting emails via SMTP/IMAP and MS Exchange Server.

Other Systems

With MacOS X you can use the GPG Suite.

With a GNU/Linux based systems you can use the package manager to install GnuPG. Alternatively you can compile GnuPG directly from the sources by yourself.