How to securely encrypt a flash drive and hard drive on Windows 7 x86?

Question

Cryptography

Hello!
Tell me how to securely encrypt a flash drive and hard drive on Windows 7 x86?
Other than Bitlocker, are there any decent alternatives?
With a bitlocker, he doesn’t want to encrypt using a PIN code, he requires you to write the key to a USB flash drive, but if someone gets access to this flash drive, you get access to files on your hard drive.

Answer 1

VeraCrypt 1.24 [ https://www.veracrypt.fr/en/Downloads.html]

Answer 2

What does "reliably" mean and from whom are you going to encrypt? (Wife, neighbor, employer, state? - they all have different opportunities)