Secure Mail for Windows
So you are stuck on Windows, but would like to be able to exchange PGP/MIME encrypted e-mail?
This is a brief guide to get you started!
Here are the steps for setting up secure e-mail on Windows:
Once you get a GPG key you will probably want to explore a variety of interesting applications beyond e-mail that take advantage of the "web-of-trust" that you can now join. Joining the web-of-trust by attending a "Key Signing Party" is beyond the scope of this tutorial.
We're going to be using GPG with Thunderbird via the Enigmail extension. For more detailed background on Enigmail see the Enigmail Quick Start Guide.