I have a HP dc5700S desktop machine with WinXPPsp2 running GuardianEdge Encryption Anywhere on bootup. I did a BIOS flash from within Windows (the HPQFlash thing). I'm certain that the version and method was correct, except after the reboot my drive wouldn't boot. I tried many other flashes from a bootable usb stick (there's actually 2 things to flash: a microcode and the BIOS so I tried many versions of each). All flashes seem successful, and BIOS is available, yet no boot. Just a black screen after a few HDD flashes.
I moved the drive into another similar machine and (while booted into this machine's working C drive) I see that my encrypted drive from the dc5700s is unreadable and asks me to format it. I deduce that my original BIOS flash within Windows has overwritten my MBR or something which makes my encrypted drive unreadable. I have no reason at all to believe that my hardware is actually faulty. Note also that I can see the HP recovery partition from the drive, so only the C drive is unreadable.
So the obvious question, assuming my deduction is correct, is how do I get back at my data on the encrypted drive. We install Encryption Anywhere via group policy so there's no CD or anything in my office and some quick googling hasn't given me anything. Can anyone help me? I'm going home and will check your suggestions in 12 hours when I return. Thanks in advance.