Recovering an encrypted SSD booting from USB

I have a Windows 7 laptop that doesn't have a standard HDD, it has a customized 256Gb SSD directly plugged onto the motherboard. The SSD is encrypted using PGP WDE.

Now some Windows DLLs got corrupted and I can no longer boot my PC, yet I need to recover some of the files on the SSD. Would it be possible (and how) to boot from a USB key (linux) and somehow access the data on the SSD?