Comment MSDOS 3.11 and a Flash drive (Score 1) 402
Just partition the HD, install MSDOS 3.11 and set it as the default boot. Make your 2nd partition nothing but randomized noise. Setup camera and prepare to send to AFV... Then carry an encrypted Flash drive and let it boot your OS of choice. Don't ever let the flash drive out of your sight. Be sure to scrub your laptop prior to reusing it once you are back home, or just throw it out.