Can you answer Robbie? [the random ho]’s question about Data Recovery?:

I am trying to find a Freeware or Open-Source Full Disk Encryption that requires authorization upon boot-up. Can anyone help me? Thank You.

Also, in addition to FDE, is there any other security measure you would perfer if it were your own computer?
By FDE, I mean inclusive of OS as well. Not just a partition or individual file/folder.

Hdd Partition Recovery