Lost PGP disk content after installing dualboot on secondary harddisk

Hi,

  My primary hard disk is PGP encrypted, my secondary hard disk is not. After I install a second windows onto my secondary hard disk for dual boot, I realize everything on my primary hard disk is gone. When I plug in the disk to another machine which runs PGP, from PGP desktop it says my disk is not encrypted.

  Is there anyway to recovery the content?

Thank you!