AutoKrypt

If you're looking for a program to protect your most important files and documents, and are willing to invest some time to fully make use of such a program, a very valid option you should consider is AutoKrypt.

AutoKrypt is a program that's capable of safeguarding files and folders. Its main feature lets you completely automate the file encryption process.

You can configure several folders so that any file you save to them gets encrypted automatically, manage profiles where you can automate the protection of different types of data, or periodically compress any group of files.

Lastly, the program also includes a system for generating encryption passwords that you can manage from the program's interface.